![Problems: 10306-10313]()
Problems: 10306-10313Seung-Jin Bang, John Calvin Williams, I. Martin Isaacs, Robert Connelly, John H. Hubbard, Walter Whiteley, Walter Rudin, E. Rodney Canfield, Solomon W. Golomb, Hongyuan Zha, O. Krafft and M. Schaefer · The American Mathematical Monthly · 1993