Markov N. G. Nikolai Grigorevich & Ostrast P.M. (1998). The geoinformation system for WWW; Korus`98. Abstracts. 1998.
Cita Chicago Style (17a ed.)Markov N. G. Nikolai Grigorevich y Ostrast P.M. The Geoinformation System for WWW; Korus`98. Abstracts. 1998, 1998.
Cita MLA (9a ed.)Markov N. G. Nikolai Grigorevich y Ostrast P.M. The Geoinformation System for WWW; Korus`98. Abstracts. 1998, 1998.
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