Large regular graphs with given valency and second eigenvalue. - Sebastian M. Cioaba; Jack H. Koolen; Hiroshi Nozaki; Jason R. Vermette (CoRR, 2015)

Maximizing the Order of a Regular Graph of Given Valency and Second Eigenvalue. - Sebastian M. Cioaba; Jack H. Koolen; Hiroshi Nozaki; Jason R. Vermette (SIAM J. Discret. Math., 2016)

The graphs with all but two eigenvalues equal to -2 or 0. - Sebastian M. Cioaba; Willem H. Haemers; Jason R. Vermette (Des. Codes Cryptogr., 2017)