1. A. Aguilar, 1986 .A review of old Basque whaling and its effect on right whales (Eubalaena glacialis) of the North Atlantic .Rep Int Whaling Comm,10, Spec Iss, 191 -99 .
2. JA Allen .1908 .The North Atlantic right whale and its near allies .B Am Mus Nat Hist,24:277 -329 .
3. PB Best, JL Bannister, RL Brownell, and GP Donovan .(Eds)2001 .Right whales: worldwide status .J Cetac Res Manag,2, Spec Iss .
4. MS Boyce .1992 .Population viability analysis .Ann Rev Ecol Syst,23:481 -506 .
5. H. Caswell, M. Fujiwara, and S. Brault .1999 .Declining survival probability threatens the North Atlantic right whale .Proc Nat Acad Sci USA,96:3308 -13 .