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Bulletin of the American Mathematical Society

The Bulletin publishes expository articles on contemporary mathematical research, written in a way that gives insight to mathematicians who may not be experts in the particular topic. The Bulletin also publishes reviews of selected books in mathematics and short articles in the Mathematical Perspectives section, both by invitation only.

ISSN 1088-9485 (online) ISSN 0273-0979 (print)

The 2020 MCQ for Bulletin of the American Mathematical Society is 0.84.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.


Finite Hjelmslev planes with new integer invariants
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by David A. Drake and Hanfried Lenz PDF
Bull. Amer. Math. Soc. 82 (1976), 265-267
  • B. Artmann, Existenz und projektive Limiten von Hjelmslev-Ebenen $n$-ter Stufe, Atti del Convegno di Geometria Combinatoria e sur Applicazioni (Univ. Perugia, Perugia, 1970) Ist. Mat., Univ. Perugia, Perugia, 1971, pp. 27–41 (German, with English summary). MR 0343166
  • David A. Drake, Nonexistence results for finite Hjelmslev planes, Abh. Math. Sem. Univ. Hamburg 40 (1974), 100–110. MR 338913, DOI 10.1007/BF02993588
  • 3. D. Drake and E. Shult, Extremal Hjelmslev planes (to appear).
  • Erwin Kleinfeld, Finite Hjelmslev planes, Illinois J. Math. 3 (1959), 403–407. MR 107209
  • Wilhelm Klingenberg, Projektive und affine Ebenen mit Nachbarelementen, Math. Z. 60 (1954), 384–406 (German). MR 65938, DOI 10.1007/BF01187385
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Additional Information
  • Journal: Bull. Amer. Math. Soc. 82 (1976), 265-267
  • MSC (1970): Primary 05B25; Secondary 05B20
  • DOI:
  • MathSciNet review: 0406828