by Sagan, Hans
Published in International journal of mathematical education in science and technology (1992)

by Sagan, Hans
Year of Publication 1994

by Sagan, Hans
Published in The Mathematical intelligencer (01.09.1993)

by Sagan, Hans
Published in Journal of mathematical analysis and applications (01.03.1990)

by Shinya, M., Okamoto, A., Saitou, M., Akiyama, Y., Sagan, H., Kitagawa, M., Tanaka, T.
Published in International journal of gynecology and obstetrics (2000)

by Sagan, H.
Published in Science (American Association for the Advancement of Science) (10.01.1964)

by Sagan, Hans, Bishir, John W.
Published in European journal of operational research (06.11.1991)

by Fashing N.J, Sagan H
Published in Environmental entomology (01.12.1979)