A Moore-like bound for graphs of diameter 2 and given degree, obtained as abelian lifts of dipoles. Šiagiová, J. — 2002 Acta Mathematica Universitatis Comenianae. New Series
A note on a Moore bound for graphs embedded in surfaces. Šiagiová, J.; Simanjuntak, R. — 2004 Acta Mathematica Universitatis Comenianae. New Series