TY - JOUR AU - Giko Ikegami TI - Singular perturbations in foliations. JO - Inventiones mathematicae PY - 1989 SP - 215 EP - 246 VL - 95 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1989__95_3_143651/ ID - IM_1989__95_3_143651 ER -