in original paper it is present as "Expressonema Smolanko et Belogurov, gen. n.", but in paper heading the first authors' name was spelt as "Smolyanko"
Smolyanko O.I., Belogurov O.I. (1991). Description and taxonomic position of Expressonema grandulata gen. et sp. n. and structural analysis of the family Dorylaimopsidae (Nematoda, Comesomatidae). Zoologicheskii Zhurnal [Zoological Journal]. 70 (5): 117 - 127.