Volume 29, Issue 3-4, 1977

ISSN: 0236-5294 (Print) 1588-2632 (Online)

In this issue (20 articles)

  1. No Access

    OriginalPaper

    Retractable groups

    R. D. Byrd, J. T. Lloyd, R. A. Mena Pages 219-233
  2. No Access

    OriginalPaper

    On some problems of P. Turán

    P. Vértesi Pages 337-353
  3. No Access

    OriginalPaper

    Illumination of convex discs

    L. Fejes Tóth Pages 355-360