00408nam a2200145   450000100060000000300030000600500170000900800410002603500190006703500180008605000210010410000220012524500870014726000280023419450UR20220427164514.0061103|||||||||||||||||||||||||||||||| d  a(janium) 19439  a(janium)19438 4aQD501b.P42 19761 aPearson, Ralph G.10aSimmetry rules for chemical reactionb : orbital topology and elementary processes  bJohn Wiley & Sonsc1976