000 00339nam a2200133Ia 4500
008 211209s2019 xx 000 0 und d
020 _a9783030042530
041 _aeng
082 _a658.4035 PET
100 _aPETROV, VLADIMIR
245 _aTRIZ. THEORY OF INVENTIVE PROBLEM SOLVING: LEVEL 1
260 _bSPRINGER
_c2019
300 _a221
999 _c95610
_d95610