TY - DATA AU - Krishan L. Duggal, Bayram Sahin TI - Differential Geometry of Lightlike Submanifolds SN - 9783034602518 PY - 2010/// PB - Birkhäuser Basel KW - Mathematics and Statistics UR - https://doi.org/10.1007/978-3-0346-0251-8 ER -