Multiple hamiltonian covers. - Hans L. Fetter (Electron. Notes Discret. Math., 2004)

The diagonal polynomials of dimension four. - Hans L. Fetter; Juan H. R. Arredondo; Luis B. Morales (Adv. Appl. Math., 2005)

Some basic properties of multiple Hamiltonian covers. - Hans L. Fetter (Discret. Appl. Math., 2006)