00317nam a2200121Ia 4500082001900000100003000019245003000049260002700079300001400106500004800120500000500168700002200173  a519.2bG192.PM  aGamkrelidze, R. V. d ed.  aProgress in mathematicsb  aNew YorkbPlenumc1970  aix, 145p.  a"Translated from the Russian by J. S. Wood"  a  aWood, J. S. ; tr.