vol. 29, no. 4 (2009)

Cyclability in bipartite graphs
Denise Amar, Evelyne Flandrin, Grzegorz Gancarzewicz
Opuscula Math. 29, no. 4 (2009), 345-364, http://dx.doi.org/10.7494/OpMath.2009.29.4.345
Matrices defined by frames
Zbigniew Ambroziński, Krzysztof Rudol
Opuscula Math. 29, no. 4 (2009), 365-375, http://dx.doi.org/10.7494/OpMath.2009.29.4.365