by Mennecart, Bastien, Geraads, Denis, Spassov, Nikolai, Zagorchev, Ivan
Published in Palaeogeography, palaeoclimatology, palaeoecology (01.06.2018)

by Geraads, Denis, Spassov, Nikolaï
Published in Geodiversitas. (16.04.2020)

by Spassov, Nikolai, Acosta-Pankov, Ilya
Published in Biodiversity data journal (09.05.2019)

by Böhme, Madelaine, Spassov, Nikolai, Fuss, Jochen, Tröscher, Adrian, Deane, Andrew S., Prieto, Jérôme, Kirscher, Uwe, Lechner, Thomas, Begun, David R.
Published in Nature (London) (21.11.2019)

by Serbezov, Ruslan, Spassov, Nikolai
Published in Animals (Basel) (20.04.2023)

by Fuss, Jochen, Spassov, Nikolai, Begun, David R, Böhme, Madelaine
Published in PloS one (22.05.2017)

by Kahlke, Ralf-Dietrich, García, Nuria, Kostopoulos, Dimitris S., Lacombat, Frédéric, Lister, Adrian M., Mazza, Paul P.A., Spassov, Nikolai, Titov, Vadim V.
Published in Quaternary science reviews (01.06.2011)

by Böhme, Madelaine, Spassov, Nikolai, Ebner, Martin, Geraads, Denis, Hristova, Latinka, Kirscher, Uwe, Kötter, Sabine, Linnemann, Ulf, Prieto, Jérôme, Roussiakis, Socrates, Theodorou, George, Uhlig, Gregor, Winklhofer, Michael
Published in PloS one (22.05.2017)

by Geraads, Denis, Spassov, Nikolaï
Published in Geodiversitas. (01.12.2016)

by Geraads, Denis, Spassov, Nikolaï, Kovachev, Dimitar
Published in Rivista italiana di paleontologia e stratigrafia (01.11.2006)

by Nikolai Spassov, Assen Ignatov, Tsvetan Mihaylov
Published in Historia naturalis bulgarica (13.03.2023)

by Neov, Boyko, Spassov, Nikolai, Hristova, Latinka, Hristov, Peter, Radoslavov, Georgi
Published in Ecology and evolution (01.03.2021)

by Geraads, Denis, Spassov, Nikolaï, Kovachev, Dimitar
Published in Journal of vertebrate paleontology (22.08.2001)

by Nikolai, Spassov, Elshad, Askerov, Assen, Ignatov, Ilya, Acosta-Pankov
Published in Historia naturalis Bulgarica (04.02.2021)

by Ersmark, Erik, Baryshnikov, Gennady, Higham, Thomas, Argant, Alain, Castaños, Pedro, Döppes, Doris, Gasparik, Mihaly, Germonpré, Mietje, Lidén, Kerstin, Lipecki, Grzegorz, Marciszak, Adrian, Miller, Rebecca, Moreno‐García, Marta, Pacher, Martina, Robu, Marius, Rodriguez‐Varela, Ricardo, Rojo Guerra, Manuel, Sabol, Martin, Spassov, Nikolai, Storå, Jan, Valdiosera, Christina, Villaluenga, Aritza, Stewart, John R., Dalén, Love
Published in Ecology and evolution (01.05.2019)

by Mizumachi, Kaito, Spassov, Nikolai, Kostov, Dimitar, Raichev, Evgeniy G., Peeva, Stanislava, Hirata, Daisuke, Nishita, Yoshinori, Kaneko, Yayoi, Masuda, Ryuichi
Published in Mammal research (01.04.2020)

by Böhme, Madelaine, Spassov, Nikolai, Majidifard, Mahmoud Reza, Gärtner, Andreas, Kirscher, Uwe, Marks, Michael, Dietzel, Christian, Uhlig, Gregor, El Atfy, Haytham, Begun, David R., Winklhofer, Michael
Published in Communications earth & environment (01.12.2021)

by Nishita, Yoshinori, Amaike, Yosuke, Spassov, Nikolai, Hristova, Latinka, Kostov, Dimitar, Vladova, Diyana, Peeva, Stanislava, Raichev, Evgeniy, Vlaeva, Radka, Masuda, Ryuichi
Published in Animal science journal (01.01.2023)

by Böhme, Madelaine, Fuss, Jochen, Spassov, Nikolai, Begun, David R.
Published in South African Journal of Science (01.05.2018)

by Boev, Zlatozar, Spassov, Nikolaï
Published in Geodiversitas. (01.09.2009)