Ivan Shmakov <ivan@theory.asu.ru> writes: > Is it in public domain? Probably, though not necessarily, as the USGS may have contracted the work out. Have you tried to get in touch with the authors? -- Aaron M. Ucko, KB1CJC (amu at alum.mit.edu, ucko at debian.org) http://www.mit.edu/~amu/ | http://stuff.mit.edu/cgi/finger/?amu@monk.mit.edu