TY - BOOK AU - Astala Kari AU - Iwaniec Tadeusz AU - Martin Gaven TI - Elliptic partial differential equations and quasiconformal mappings in the plane SN - 978-0-691-13777-3 U1 - 515.3533 PY - 2009/// CY - Princeton PB - PUP KW - Elliptic differential equations KW - Quasiconformal mappings ER -