TY - JOUR AU - Bogdan Bojarski TI - On the Beltrami equation, once again: 54 years later JO - Annales Fennici Mathematici PY - 2010 SP - 59 EP - 73 VL - 35 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2010.3504/ DO - 10.5186/aasfm.2010.3504 LA - en ID - AFM_2010_35_1_a3 ER -