SPECTROSCOPIC STUDY OF 1,3-SUBSTITUTED SQUARIC ACID DERIVATIVES AND ITS DIMER,AGGREGATE FORMATION
ZHOU XIN, ZHANG BAO-WEN, CAO YI
Imaging Science and Photochemistry . 1995, (3): 193 -199 .  DOI: 10.7517/j.issn.1674-0475.1995.03.193