TY - BOOK AU - Caffarelli,L & Weinan,E (eds) ED - Weinan, E TI - Hyperbolic equations & frequency interactions T2 - IAS/Park city mathematics series 5 SN - 9780821805923 U1 - 4.17+10.04+10.05+14.03 PY - 1999/// CY - Providence PB - American Mathematical Society ER -