TY - BOOK AU - Caratheodory C TI - Calculus of variations and partial differential equation of the first oder part II : Calculus of variations T2 - Holden-Day Series in Mathematical Physics Ed by Julius J Brandstatter U1 - B42, K7.2 PY - 1967/// CY - London PB - Holden-day inc KW - Special Functions ER -