Krishna, Shri Correspondence of certain curves on the focal surfaces of a rectilinear congruence. (English) Zbl 0057.37502 Rev. Fac. Sci. Univ. Istanbul, Sér. A 19, 69-78 (1954). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:Differential geometric euclidean spaces × Cite Format Result Cite Review PDF