Piwowarczyk, R. and Tatanov, I. 2015. Orobanche Laxissima Uhlich & Rätzel (Orobanchaceae) – A New Species for Dagestan (Russia) and Azerbaijan. Biodiversity: Research and Conservation. 32, (Mar. 2015), 25–28. DOI:https://doi.org/10.2478/biorc-2013-0014.