by P. Hirsch ... [et al.]. by M.M. Barash ... [et al.] by J.E. McGrath ... [et al.]. by B. P. Lim ... [et al.]. by L.B. Welsh ... [et al.] by P.C. Baron ...[et al.] by H.G. Adolph ... [et al.] by T. L. Holst ... [et al.] J. Grosch ... [et al.] by P.T. Bolwijn ... [et al.].