@article{JRAM_1976__0283_0284_151725,
     author = {S. Yamamuro and John Grunau},
     title = {Notes on differential calculus in topological liear spaces.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {176--181},
     publisher = {mathdoc},
     volume = {0283_0284},
     year = {1976},
     zbl = {0336.58004},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1976__0283_0284_151725/}
}