@misc {IOPORT.03668627,
    author       = {Haemers, Wilhelmus Hubertus},
    title        = {Eigenvalue techniques in design and graph theory.},
    howpublished = {Proefschrift. Amsterdam: Mathematisch Centrum. 104 p. (1979).},
    year         = {1979},
    identifier   = {03668627},
}