Lower turonian inoceramids from Sergripe, Brazil: Systematic straticgraphy and palaeocology fossil and Strata 22 Hessel, Maria Helena Ribero Heftet / 1989 / Engelsk
The upper cambrian rehbachiella and the phylogeny of branchiopoda and crustacea Walossek, Dieter Heftet / 1993 / Engelsk
Upper Cretaceous belemnites from the Kristianstad area in Scania Christensen, Walter Kegel Heftet / 1975 / Engelsk
Taxonomy, ecology and identity of conodents proceeding of ECOS III, Lund 1982 Martinson, Anders Heftet / 1984 / Engelsk
Skaracarida, a new order of Crustacea from the Upper Cambrian of Væstergøtland, Sweden Müller, Klaus J. Heftet / 1985 / Engelsk
Conodonts of the middle ordovician table head formation, western Newfoundland Stouge, Svend Sandbergh Heftet / 1984 / Engelsk
Trilobite systematics, biostratigraphy and palaeocology of the lower Ordovician Komstad Limestone and Huk Formations, Southern Scandinavia Nielsen, Arne Thorshøj Heftet / 1995 / Engelsk
Middle Ordovician phosphatic inarticulate brachiopods from Vestergotlanf and Dalarne, Sweden Holmer, Lars E. Heftet / 1989 / Engelsk
Paleobiology of the Neoproterozoic Svanbergfjellet formation, Spitsbergen Butterfield, Nicholas J. Heftet / 1994 / Engelsk
Cambrian-Ordovician lingulate brachiopods from Scandinavia, Kazakhstan and South Ural Mountains Popov, Leonid Heftet / 1994 / Engelsk
The Lower Ordovician (Tremadocian to Floian) graptolite fauna of Hunneberg, Västergötland, Sweden Maletz, Jörg Heftet / 2023 / Engelsk
A stratigraphic study of late weichselian deglaciation, shore displace Björck, Svante Heftet / 1981 / Engelsk
Palaeontology and biostratigraphy of the early cambrian meishucunian stage in Yunnan province, South China Qian, Yi Heftet / 1989 / Engelsk
Ecological, sedimentary and geochemical evolution of the late-glacial to postglacial Åmose lacustrine basin, Denmark Noe-Nygaard, Nanna Heftet / 1995 / Engelsk
Deep-sea benthic foraminifera from cretaceous-paleogene boundary strata in the South-Atlantic - taxonomy and paleoecology Heftet / 1997 / Engelsk
External morphology and larval development of Upper Cambrian maxillopod Bredocaris admirabilis Müller, Klaus J. Heftet / 1989 / Engelsk
Taxonomy and paleoecology of late Neogene benthic foraminifera from the Caribbean Sea and eastern equatorial Pacific Ocean Bornmalm, Lennart Heftet / 1997 / Engelsk
Coniacian and santonian belemnite faunas from Bornholm, Denmark ; Santonian to Maastrichtian ammonites from Scania, southern Sweden Christensen, Walter Kegel Heftet / 1997 / Engelsk
Ellipsocephalid trilobites from Cambrian Series 2 and Stage 4, with emphasis on the taxonomy, morphological plasticity and biostratigraphic significance of ellipsocephalids from Scania, Sweden Cederström, Peter Heftet / 2022 / Engelsk
Morphology, ontogeny, and life habit of agnostus pisiformis from the upper Cambrian of Sweden. Müller, Klaus J. Heftet / 1987 / Engelsk
Acritarch biostratigraphy of the lower cambrian and the precambrian cambrian boundary in southeastern Poland Heftet / 1991 / Engelsk
Postcranial anatomy and habits of Asian multituberculate mammals Kielan-Jaworowska, Zofia Heftet / 1995 / Engelsk
Brachiopods from the Maastrichtian danien boundary sequence at Nye Kløv, Jylland, Denmark Johansen, Marianne Bagge Heftet / 1987 / Engelsk
Wall structure and classification of fossils and recent elphidiid Hansen, Hans Jørgen Heftet / 1976 / Engelsk
Cambrian acritarchs from Upper Silesia, Poland - biochronology and tectonic implications Heftet / 1998 / Engelsk
Orthacean and strophomenid brachiopods from the lower silurian of the central Oslo region Baarli, B. Gudveig Heftet / 1995 / Engelsk
Late Precambrian microfossils from the Visingsø Beds in southern Sweden Vidal, Gonzalo Heftet / 1976 / Engelsk
Trilobites of the tremadoc Bjørkåsholmen formation in the Oslo region, Norway Ebbestad, Jan Ove Røysi Heftet / 1999 / Engelsk
Stratgraphic correlation by microfacies of the cenomanian coniaction of the Sergripe Basin, Brazil. Berthou, Pierre-Yves Heftet / 1988 / Engelsk
Trace fossils from the lower Cambrian Mickwitzia sandstone, south-central Sweden Jensen, Søren Heftet / 1997 / Engelsk
Evolution and morphology of the Trilobita, Trilobitoidea and Merostomata proceedings of a NATO Adv Martinsson, Anders Heftet / 1975 / Engelsk
Arenigian and Llanvirnian conodonts from Jamtland, northern Swedwn Løfgren, Anita Heftet / 1978 / Engelsk
Arthropods of the lower cambrian Chengjiang fauna, Southwest China Hou, Xianguang Heftet / 1998 / Engelsk
Bryozoa from the Maastrichtian Korojon Formation, Western Australia Håkansson, Eckart Heftet / 2024 / Engelsk
Middle cambrian agnostoids and trilobites from the lower Allochthon, Swedish caledonides Weidner, Thomas Heftet / 2023 / Engelsk
Fact and fiction 2D textbook, engelsk for naturbruk og hotell- og næringsmiddelfag, modul 2 Fevang, Hans Heftet / 2000 / Bokmål
Fact and fiction 2F textbook : engelsk for VK naturbruk, hotell- og næringsmiddelfag Fevang, Hans Heftet / 1995 / Bokmål
Fact and fiction 2A textbook : engelsk for VK byggfag, tekniske byggfag, trearbeidsfag Fevang, Hans Heftet / 1995 / Bokmål
Fact and fiction 2E activity book : aktivitetsbok i engelsk, videregående kurs, modul 2 Fevang, Hans Heftet / 1996 / Bokmål
Fact and fiction 1D activity book : engelsk for grunnkurs hotell- og næringsmiddelfag og naturbruk, modul 1 Fevang, Hans Heftet / 1997 / Nynorsk
Fact and fiction 2E activity book : engelsk for formgivningsfag, modul 2 Fevang, Hans Heftet / 1998 / Nynorsk
Fact and fiction 2D activity book : engelsk for naturbruk og hotell- og næringsmiddelfag : modul 2 Fevang, Hans Heftet / 1998 / Nynorsk
Fact and fiction 1A textbook, engelsk for grunnkurs byggfag, tekniske byggfag og trearbeidsfag, modul 1 Fevang, Hans Heftet / 2002 / Bokmål
Fact and fiction 1C activity book : engelsk for grunnkurs helse- og sosialfag, modul 1 Fevang, Hans Heftet / 1997 / Bokmål
Fact and fiction 1B activity book : engelsk for grunnkurs elektrofag, kjemi- og prosessfag og mekaniske fag, modul 1 Fevang, Hans Heftet / 1997 / Bokmål
Fact and fiction 1B activity book : aktivitetsbok i engelsk, grunnkurs, modul 1 Thesen, Halvor Heftet / 1995 / Bokmål
Fact and fiction 1A textbook : engelsk for grunnkurs elektrofag, mekaniske fag, byggfag, tekniske byggfag, trearbeidsfag, kjemi- prosessfag Fevang, Hans Heftet / 1994 / Bokmål
Fact and fiction 1C textbook : engelsk for grunnkurs formgivingsfag Thesen, Halvor Heftet / 1994 / Bokmål