Gorjanović-Kramberger, C. (1890). Die praepontischen Bildungen des Agramer Gebirges. Glasnik hrvatskoga naravoslovnoga društva. 5, 151-163., available online athttps://www.biodiversitylibrary.org/page/11105025 page(s): 155, pl. 6, fig. 4 [details]
MolluscaBase eds. (2021). MolluscaBase. Limnaea extensa Gorjanovic-Kramberger, 1890 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1050754 on 2024-09-24
Marine Species Traits editorial board (2024). Marine Species Traits. Limnaea extensa Gorjanović-Kramberger, 1890 †. Accessed at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=1050754 on 2024-09-24
original descriptionGorjanović-Kramberger, C. (1890). Die praepontischen Bildungen des Agramer Gebirges. Glasnik hrvatskoga naravoslovnoga društva. 5, 151-163., available online athttps://www.biodiversitylibrary.org/page/11105025 page(s): 155, pl. 6, fig. 4 [details]