@article{MM2_1986__54_155120,
     author = {I.E. Valeontis},
     title = {Parallel-P-\"Aquidistante {Regelfl\"achen.}},
     journal = {Manuscripta mathematica},
     pages = {391--404},
     year = {1986},
     volume = {54},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MM2_1986__54_155120/}
}