Proceedings of the 1986 International Congress on Renewable Energy Sources. Recovery and improvement of oils from coal. International Congress on Renewable Energy Sources [18-23 Mayo 1986, Madrid]. Consejo Superior de Investigaciones Científicas.; Terol, S., ed. Mastral, A.M. ...[et al.].; |
Proceedings of the 1986 International Congress on Renewable Energy Sources. Depolymerization-hydroliquefaction of coal in low severity conditions. International Congress on Renewable Energy Sources [18-23 Mayo 1986, Madrid]. Consejo Superior de Investigaciones Científicas.; Terol, S., ed. Mastral, A.M. ...[et al.].; |