TY - JOUR AU - Bauer, Friedrich-Wilhelm TI - Tangentialstrukturen JO - Annales de l'Institut Fourier PY - 1959 DA - 1959/// SP - 111 EP - 146 VL - 9 PB - Institut Fourier UR - http://www.numdam.org/articles/10.5802/aif.90/ UR - https://www.ams.org/mathscinet-getitem?mr=114217 UR - https://zbmath.org/?q=an%3A0137.42402 UR - https://doi.org/10.5802/aif.90 DO - 10.5802/aif.90 LA - de ID - AIF_1959__9__111_0 ER -