De Cicco, J. The geometry of fields of lineal elements. (English) JFM 66.0864.01 Trans. Amer. math. Soc. 47, 207-229 (1940). Reviewer: Schouten, J. A., Prof. (Epe, Holland) × Cite Format Result Cite Review PDF Full Text: DOI
de Cicco, J. The differential geometry of series of lineal elements. (English) JFM 65.0787.02 Trans. Amer. math. Soc. 46, 348-361 (1939). Reviewer: Haupt, O., Prof. (Erlangen) × Cite Format Result Cite Review PDF Full Text: DOI