Authors : gregorio barrio-eladio jiménezmejías-josé pulido-pablo lardelliclaret-maría j bravo

Authors : marek panek

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

Authors : marijana popović hadžija-marina korolija-gabrijela vukadinović-mirko hadžija

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

Authors : sylwia nowak-arkadiusz nowak