Dvorak's guide to PC telecommunications /

Autor Dvorak, John, 1952-, Anis, Nick
Vydáno 1990

Global positioning system measurements on the island of Hawaii from 1987 to 1990 /

Autor Dvorak, John, Okamura, Arnold T., Lisowski, Michael, Prescott, W. H., Svarc, Jerry L.
Vydáno 1994