RAS (2021). Nadsoniella nigra var. hesuelica Lyakh & Ruban, 1970. Accessed at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=988995 on 2024-03-29
RAS (Eds.) (2024). Register of Antarctic Species. Nadsoniella nigra var. hesuelica Lyakh & Ruban, 1970. Accessed at: https://ras.biodiversity.aq/aphia.php?p=taxdetails&id=988995 on 2024-03-29