Fused heterocycles 11.1 Synthesis of tricyclic fused pyrazolines by the reaction of 3-arylidenechromanones and 3-arylidene-1-thiochromanones with hydrazine - Lévai, Albert; Kövér, Katalin E.; Jekő, József (ARKIVOC, 2006)
doi: 10.3998/ark.5550190.0008.804