1. The energy cost of free existence for Bering Sea harbour and spotted seals;Ashwell-Erickson,1981
2. Beitrag zur Anatomie des Cava sphincters des Seehundes (Phoca vitulina);Blessing;Anat. Anz.,1969
3. Cardiovascular adjustments to diving in mammals and birds;Blix,1983
4. Ventricular dilatation in the diving seal;Blix;Acta Physiol. Scand.,1973
5. Equipment for use in angiographic examinations of animals during diving;Blix;Acta Physiol. Scand.,1973