Comunidades Europeias., Comissão., Directorat General XIII Information Technologies and Industries, and Telecommunications DELTA 1993 : annual technical report on RTD : flexible and distance learning / Commission of the European Communities. DG XIII Information Technologies and Industries, and Telecommunications

DELTA 1993 : annual technical report on RTD : flexible and distance learning / Commission of the European Communities. DG XIII Information Technologies and Industries, and Telecommunications . - [Bruxelles] : C.E.C., [1993?] . - [3, 177] p., pag. var. : il. 29 cm
37.018.43