@article{05037564,
title = {Affine surfaces with planar affine normals in 3-dimensional Minkowski space },
journal = {Mathematica Pannonica},
volume = {17},
year = {2006},
pages = {69-82},
zbl = {1121.53010},
language = {en},
url = {http://dml.mathdoc.fr/item/05037564}
}
Manhart, Friedrich. Affine surfaces with planar affine normals in 3-dimensional Minkowski space . Mathematica Pannonica, Tome 17 (2006) pp. 69-82. http://gdmltest.u-ga.fr/item/05037564/