Catalan, E. On the continued fraction expansion of \(\sqrt N\). (Sur le développement, en fraction continue, de \(\sqrt N\).) (French) JFM 22.0222.02 Mathesis X, 17 (1890). Reviewer: Mansion, Prof. (Gent) (Lampe, Prof. (Berlin)) MSC: 11A55 11Y65 PDFBibTeX XMLCite \textit{E. Catalan}, Mathesis 10, 17 (1890; JFM 22.0222.02)
Carrara, B. Calculation of square roots by the method of the two means. (Extraction de la racine carrée par la méthode des deux moyennes.) (French) JFM 22.0222.01 Mathesis X, 15-16 (1890). MSC: 11A55 11Y65 PDFBibTeX XMLCite \textit{B. Carrara}, Mathesis 10, 15--16 (1890; JFM 22.0222.01)
Thiele, T. N. [Oppermann] A piece of heritage from Professor Oppermann. (Et Stykke Arvegods fra Professor Oppermann.) (Danish) JFM 22.0221.01 Nyt Tidss. for Math. I, 33-39 (1890). Reviewer: Valentiner, Dr. (Kopenhagen) MSC: 11A55 11Y65 PDFBibTeX XMLCite \textit{T. N. Thiele}, Nyt Tidss. for Math. 1, 33--39 (1890; JFM 22.0221.01)
Gegenbauer, L. On the quadratic residue symbol. (Ueber den quadratischen Restcharakter.) (German) JFM 23.0188.03 Wien. Ber. C, 1072-1087 (1890). Reviewer: Simon, P., Dr. (Bonn) MSC: 11A15 11Y16 PDFBibTeX XMLCite \textit{L. Gegenbauer}, Wien. Ber. 100, 1072--1087 (1890; JFM 23.0188.03)