@article{GDZPPN002226952,
title = {Parallel-P-\"Aquidistante Regelfl\"achen.},
journal = {Manuscripta mathematica},
volume = {55},
year = {1986},
pages = {391-404},
language = {de},
url = {http://dml.mathdoc.fr/item/GDZPPN002226952}
}
Valeontis, I.E. Parallel-P-Äquidistante Regelflächen.. Manuscripta mathematica, Tome 55 (1986) pp. 391-404. http://gdmltest.u-ga.fr/item/GDZPPN002226952/