by Deutsch, H.F., Kline, B.E., Rusch, H.P.
Published in The Journal of biological chemistry (01.11.1941)

by Kline, B.E., Elvehjem, C.A., Halpin, J.G.
Published in Poultry science (01.03.1935)

by Elvehjem, C.A., Kline, B.E.
Published in The Journal of biological chemistry (01.12.1933)