Authors : sandor barany-martin nagy-jiri skvarla

Authors : n heigl-a hodzic-m llusa-w tritthart-f reiter

Authors : m bayat-e bayat

Authors : irene papavlasopoulou-costas perdikaris-leonidas vardakas-ioannis paschos

Authors : danut cimponeriu-cristian serafinceanu-pompilia apostol-mihai toma-monica stavarachi

Authors : vilma kisnieriene-tatiana i ditchenko-anatoly p kudryashov-vidmantas sakalauskas-vladimir m yurin