Gewurz, Daniele A. On Parker vectors and related concepts. (Italian) Zbl 1053.20501 Boll. Unione Mat. Ital., Sez. A, Mat. Soc. Cult. (8) 3 Suppl., 85-88 (2000). MSC: 20B05 20B07 PDFBibTeX XMLCite \textit{D. A. Gewurz}, Boll. Unione Mat. Ital., Sez. A, Mat. Soc. Cult. (8) 3, 85--88 (2000; Zbl 1053.20501)
Merola, Francesca Orbits of infinite permutation groups. (Italian) Zbl 1053.20502 Boll. Unione Mat. Ital., Sez. A, Mat. Soc. Cult. (8) 3 Suppl., 137-139 (2000). MSC: 20B07 PDFBibTeX XMLCite \textit{F. Merola}, Boll. Unione Mat. Ital., Sez. A, Mat. Soc. Cult. (8) 3, 137--139 (2000; Zbl 1053.20502)