Lumbricus friendi friendi, Taxa Only, Exact Match: 2 Treatments

Lumbricus friendi subsp. friendi			Stojanović, Mirjana, Sekulić, Jovana & Trakić, Tanja, 2018, Checklist of earthworms (Oligochaeta: Lumbricidae) from Serbia: a review, Zootaxa 4496 (1), pp. 124-155 : 143-144	143-144
Lumbricus friendi subsp. friendi			Christoffersen, Martin Lindsey, 2011, Catalogue of the Lumbricidae (Annelida, Clitellata, Lumbricoidea) from South America, with remarks on the systematics of the Lumbricina, Zoosystema 33 (2), pp. 141-173 : 158	158