TY - JOUR AU - Karin Erdmann TI - On tubes for blocks of wild type JO - Colloquium Mathematicum PY - 1999 SP - 261 EP - 270 VL - 82 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-82-2-261-270/ DO - 10.4064/cm-82-2-261-270 LA - en ID - 10_4064_cm_82_2_261_270 ER -