@article{JRAM_1994__447_153590,
     author = {M.J. Taylor and A. Agboola},
     title = {Class invariants of {Mordell-Weil} groups.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {23--62},
     publisher = {mathdoc},
     volume = {447},
     year = {1994},
     zbl = {0799.11049},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1994__447_153590/}
}