[1] M. Dolcher:
Topologie e strutture di convergenza. Ann. del la Scuola Norm. Sup. di Pisa III, Vol. XIV, Pasc. I (1960), 63-92.
MR 0114201 |
Zbl 0178.25502
[2] J. Novák:
On some problems concerning convergence spaces and groups. General Topology and its Relations to Modern Analysis and Algebra (Proc, Kanpur Topological Conf., 1968). Academia, Praha 1970, 219-229.
MR 0278253
[3] F. Zanolin:
Solution of a problem of J. Novák about convergence groups. Bollettino Un. Mat. Ital. (5) 14-A (1977), 375-381.
MR 0451220