Skou, J.C. & Esmann, M. (1988)
Preparation of membrane Na+,K+-ATPase from rectal glands of Squalus acanthias. Methods in Enzymology, 156, 43–46

Esmann, M. & Christiansen, C. & Karlsson, K.A. & Hansson, G.C. & Skou, J.C. (1980)
Hydrodynamic properties of solubilized (Na+ + K+)-ATPase from rectal glands of Squalus acanthias. Biochimica et Biophysica Acta (BBA)/Biomembranes, 603(1), 1–12
DOI: 10.1016/0005-2736(80)90386-7

Skou, J.C. & Esmann, M. (1979)
Preparation of membrane-bound and of solubilized (Na+ + K+)-ATPase from rectal glands of Squalus acanthias. The effect of preparative procedures on purity, specific and molar activity . Biochimica et Biophysica Acta (BBA)/Enzymology, 567(2), 436–444
DOI: 10.1016/0005-2744(79)90129-3

Esmann, M. & Skou, J.C. & Christiansen, C. (1979)
Solubilization and molecular weight determination of the (Na+ + K+)-ATPase from rectal glands of Squalus acanthias. Biochimica et Biophysica Acta (BBA)/Enzymology, 567(2), 410–420
DOI: 10.1016/0005-2744(79)90127-X