Diels-Alder reaction of mesophase pitch insoluble fractions with maleic anhydride Toshima, H. ; Hino, T. ; Murakami, K. ; Mochida, I. Abstract Publication: Journal of Materials Science Pub Date: April 1994 DOI: 10.1007/BF00351321 Bibcode: 1994JMatS..29.1966T