[1] Fialkow A. Conformal geodesics. Trans Amer Math Soc, 1939, 45: 443--473
[2] Nomizu K, Yano K. On circles and spheres in Riemannian geometry. Math Ann, 1974, 210: 163--170
[3] Yano K. Concircular geometry, I-V. Proc Imp Acad, 1940, 16: 195-200, 354-360, 442-448, 505-511; 1942, 18: 446--451
[4] Tashiro Y. Remarks on a theorem concerning conformal transformations. Proc Imp Acad, 1959, 35: 421--422
[5] Ishihara S, Tashiro Y. On Riemannian manifolds admitting a concircular transformation. Math J Okayama Univ, 1959, 9: 19--47
[6] Özdeger A, Senturk Z. Generalized circles in a Weyl space and their conformal mapping. Publ Math Debrecen, 2002, 60(1/2): 75--87
[7] Hlavaty V. Theorie d'immersion d'une Wm dans Wn. Ann Soc Polon, Math, 1949, 21: 196--206
[8] Norden A. Affinely Connected Spaces. Moscow: Nauka, 1976
[9] Zlatanov G, Tsareva B. On the geometry of the nets in the n-dimensional space of Weyl. J Geom, 1990, 38(1/2): 182--197
[10] Hitchin N.J. Complex manifolds and Einstein's equations//Twistor geometry and non-linear systems. Lecture notes in Math, Vol 970. Berlin: Springer, 1982: 73--79
[11] Pedersen H., Tod K.P.Three-dimensional Einstein-Weyl geometry. Adv Math, 1993, 97(1): 74--108
[12] Lovelock D, Rund H. Tensors, Differential Forms, and Variational Principles. New York: Dover Publ, 1989
[13] Özdeger A. On sectional curvatures of a Weyl manifold. Proc Japan Acad, 2006, 82A(8): 123--125
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