M. Tapio I. Grigaliunaite, L.E. Holm, S. Jeppsson, J. Kantanen, I. Miceikiene, I. Olsaker, H. Viinalass and E. Eythorsdottir, 2002. Mitochondrial differentiation in Northern European sheep. Proceedings of the 7th World Congress on Genetics Applied to Livestock Production. CD-ROM communication n° 26-38.

I. Grigaliunaite, M. Tapio, L.-E. Holm, S. Jeppsson, J. Kantanen, I. Miceikiene, I. Olsaker, H. Viinalass and E. Eythorsdottir, 2002. Weitzman´s approach and components of diversity in Northern European sheep breeds. Proceedings of the 7th World Congress on Genetics Applied to Livestock Production. CD-ROM communication n° 26-37.

E. Eythorsdottir, I. Olsaker, M. Tapio, I. Miceikiene, L-E. Holm, S. Jeppsson and E. Fimland, 2001. Origin and genetic diversity of North European sheep breeds. Book of Abstracts of the 52nd Annual Meeting of EAAP Budapest, 26-29. Aug. , p. 262. (abstract)

I. Tapio, M. Tapio, Z. Grislis, L-E. Holm, S. Jeppsson, J. Kantanen, I. Miceikiene, I. Olsaker, H. Viinalass and E. Eythorsdottir, 2005.  Unfolding of population structure in Baltic sheep breeds using microsatellite analysis.  Heredity 94:448-456.  http://www.nature.com/hdy/journal/v94/n4/index.html