Perturbations of discontinuous solutions of non-linear systems of differential equations Norman Levinson OriginalPaper Pages: 71 - 106
Algebraisch-Zahlentheoretische Betrachtungen Über Ringe. II L. RédeiT. Szele OriginalPaper Pages: 209 - 241
Extremum problems in the theory of analytic functions A. J. MacintyreW. W. Rogosinski OriginalPaper Pages: 275 - 325