Voir la notice de l'article provenant de la source Math-Net.Ru
[1] Bianchi L., Ann. Scuola Norm. Pisa, 2 (1879), 285 | MR
[2] Lie S., Arch. Math. og Naturvidenskab, 5:3 (1880), 282, 328
[3] Backlund A. V., “Om ytor med kostant negativ krokning”, Lunds Universitets Arsskrift, 19 (1883)
[4] Darboux G., Lesons sur la theorie generate des surfaces, v. III, Gauthier-Villars et Fils, Paris, 1894 | MR | Zbl
[5] Ibragimov N. Kh., Gruppy preobrazovanii v matematicheskoi fizike, Nauka, M., 1983 | MR
[6] Olver P., Prilozhenie grupp Li k differentsialnym uravneniyam, Mir, M., 1989 | MR | Zbl
[7] Teneblat K., Terng C. L., Annals of Math., 111:3 (1980), 477–490 | DOI | MR
[8] Terng C. L., Annals of Math., 111:3 (1980), 491–510 | DOI | MR | Zbl
[9] Chern S. S., Terng C. L., Rocky Mount Journ. of Math., 10:1 (1980), 105 | DOI | MR | Zbl
[10] Bianchi L., Annali di Matem., 18:3 (1911), 185–243 | DOI | MR | Zbl
[11] Teneblat K., Bol. Soc. Bras. Math., 18:2 (1985), 67–92