TY - JOUR AU - Wolfgang Kühnel TI - Tight and 0-Tight Polyhedral Embeddings of Surfaces. JO - Inventiones mathematicae PY - 1980 SP - 161 EP - 178 VL - 58 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM_1980__58_142718/ ID - IM_1980__58_142718 ER -