TY - JOUR AU - Janusz MierczyƄski TI - Smoothness of unordered curves in two-dimensional strongly competitive systems JO - Applicationes Mathematicae PY - 1999 SP - 449 EP - 455 VL - 25 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-25-4-449-455/ DO - 10.4064/am-25-4-449-455 LA - en ID - 10_4064_am_25_4_449_455 ER -