THE CORRESPONDENCE OF CATALINA-II AND FLORIDABLANCA REGARDING THE FRENCH-REVOLUTION, FROM SEPTEMBER 1791 TO FEBRUARY 1792 Article VOLOSIUK O. HISPANIA-REVISTA ESPANOLA DE HISTORIA. INST JERONIMO ZURITA. 1990. P. 303-326
CHEMICAL-REDUCTION OF SILVER FILMS ON GLASS CARBON Article KONDRASHEVA V.S., KVOKOVA I.M., IVANOVA L.K., FROLOVA V.N. Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Khimiya i Khimicheskaya Tekhnologiya. Ivanovo State University of Chemistry and Technology. Vol. 33. 1990. P. 90-92