Cronberg 1995. Mallomonas variabilis, sp. nov. (Synurophyceae) with stomatocysts found in Lake Konnevesi, Finland. Sandgren, Craig D.; Smol, John P.; Kristiansen, Jorgen[Eds]. Chrysophyte algae: ecology, phylogeny and development., Cambridge University Press, Cambridge & New York, 1995: 1-22. Chapter pagination: 333-344