Dear Colleagues,
The following paper has recently been published:
D. M. Glazov, O. V. Shpak, D. M. Kuznetsova, B. A. Solovyev, D. A. Udovik, N. G. Platonov, I. N. Mordvintsev, D. I. Ivanov, V. V. Rozhnov
"Observations of the walrus (Odobenus rosmarus) in the Barents, Kara, and Laptev seas in 2010–2012"
Biology Bulletin December 2013, Volume 40, Issue 9, pp 783-789

It is available on SpringerLink:
http://link.springer.com/article/10.1134/S1062359013090057
Digital Object Identifier (DOI) 10.1134/S1062359013090057

Abstract
Data on walrus (Odobenus rosmarus) sightings during four scheduled cruises of the research expedition vessel Mikhail Somov in the Barents, Kara, and Laptev seas (August–November, 2010; September–October, 2011; November–December 2011; and July–October, 2012) and during an expedition on the Poyaris motor ship in August–September, 2012, are presented. The data collected support and expand the existing knowledge on the distribution and abundance of the Atlantic and Laptev walrus subspecies.

Please contact me at glazovd@gmail.com if you can't get access using the link.