Al-Handal, A., Kociolek, P., & Abdullah, D. (2016).

Williamsella iraqiensis sp. nov., a new diatom (Bacillariophyta, Fragilariophyceae) from Sawa Lake, South Iraq

. Phytotaxa, 244(3), 289–297. https://doi.org/10.11646/phytotaxa.244.3.5