by R. V. Ambartsumyan ...[et al.]. by H. T. Chapman ...[et al.]. by R. L. Hobson ...[et al.]. by R. M. Dayton ...[et al.]. by Y. S. Touloukian ...[et al.]. by D.G. Ackerman ... [et al.]. by R. M. Bozorth ...[et al.]. by V. A. Vassilyev ...[et al.]. by V. E Yarsley ...[et al.]. by R. J. Blin-Stoyle ...[et al.].