1. Gazzetta Chimica Italiana. – 1982. – 112 (11-12). – p.469-473.
Carpanelli C., Gaiani G., Sancassan F.
2. Studies on 2-hydroxy-3-naphtoic acid….
Journal of the Institution of Chemists (India) 1976, 48(6), 280-285
Pant U.C., Josi B.C.
СПАСИБО БОЛЬШОЕ!!!