TY - DATA AU - James M. Moran, Jacqueline N. Hewitt, Kwok-Yung Lo TI - Gravitational Lenses SN - 9783540461425 PY - 1989/// PB - Springer Berlin Heidelberg KW - Physics and Astronomy UR - https://doi.org/10.1007/3-540-51061-3 ER -