%0 Journal Article %A Bergmann, Howard G. %T The boundary layer problem for certain non-linear ordinary differential equations %J Compositio Mathematica %D 1953 %P 119-169 %V 11 %I Kraus Reprint %U http://www.numdam.org/item/CM_1953__11__119_0/ %G en %F CM_1953__11__119_0