no. 1/2017, circle, sphere, surface by norman dilworth, helmut dirnaichner, lars englund, christian frosch, rupprecht geiger, hermann glöckner, ekkeland götze, sebastian hempel, matti kujasalo, verena loewensberg, dóra maurer, jan van munster, gudrun piper, antonio scaccabarozzi, wolfgang schmidt, reiner seliger, leon polk smith, eric snell, sándor szombati, timm ulrichs, grazia varisco, roger vilder, peter vogel, martin willing, vladimir škoda