. . "Circulation of phosphorus in the frog : with a note On the circulation of potassium, by G. Hevesy, L. Hahn and O. Rebbe" . . . . . . "Circulation of phosphorus in the frog, with a note on the circulation of potassium" . . . "Circulation of phosphorus in the frog with a note on the circulation of potassium" . . . "Circulation of phosphorus in the frog : With a note on the circulation of potassium"@da . . . . . "Circulation of phosphorus in the frog : with a note on the circulation of potassium" . . . . .