@inbook{book/191, author = {A. Phelloures}, title = {8e Balkanike Mathematike Olumpiada, 1991}, booktitle = {$\Beta$$\Alpha$$\Lambda$$\Kappa$$\Alpha$$\Nu$$\Iota$$\Kappa$$\Epsilon$$\Sigma$ $\Mu$$\Alpha$$\Theta$$\Eta$$\Mu$$\Alpha$$\Tau$$\Iota$$\Kappa$$\Epsilon$$\Sigma$ $\Omicron$$\Lambda$$\Upsilon$$\Mu$$\Pi$$\Iota$$\Alpha$$\Delta$$\Epsilon$$\Sigma$ 1984 - 2001}, series = {GDML\_Books}, publisher = {$\Epsilon$.$\Mu$.$\Epsilon$.}, year = {2002}, url = {http://dml.mathdoc.fr/item/book/191} }
Α. Φελλούρης. 8η Βαλκανική Μαθηματική Ολυμπιάδα, 1991, dans ΒΑΛΚΑΝΙΚΕΣ ΜΑΘΗΜΑΤΙΚΕΣ ΟΛΥΜΠΙΑΔΕΣ 1984 - 2001, GDML_Books, (2002), . http://gdmltest.u-ga.fr/item/book/191/