000 00347nam a2200097Ia 4500
008 120224s9999 xx 000 0 und d
082 _a516.36
_bHER
100 _aHermann, Robert.
245 _aGeometric theory of non-lingear differential equations,Backlund transformations, and solitions.
260 _bMass, Math SCI Press.
_aBrookline.
_c1977
999 _c141567
_d141567