C. T.  McAllister and Robison, H. W., ?Introduced millipeds (Arthropoda: Diplopoda) of Arkansas, Louisiana, Oklahoma, and Texas?, The Southwestern Naturalist, vol. 63, no. 4, pp. 284-289, 2019.

P.  Decker, Reip, H. S., and Voigtländer, K., ?Millipedes and centipedes in German greenhouses (Myriapoda: Diplopoda, Chilopoda)?, Biodiversity Data Journal, vol. 2, no. e1066, pp. 1-43, 2014.

C. Wilhelm Verhoeff, ?[Letter to Ludwig Döderlein]?, Correspondence with Ludwig Döderlein, Archives de la Ville et de l?Eurométropole de Strasbourg, Strasbourg, Grand Est, France, 1898.

J. - J.  Geoffroy and Ferrand, M., ?Myriapodes chilopodes et diplopodes des souterrains de Paris et de sa proche banlieue?, Spelunca, 5e série, no. 157, pp. 39-47, 2020.

J.  Kocot-Zalewska and Domaga?a, P., ?Terrestrial invertebrate fauna of Polish caves ? a summary of 100 years of research?, Subterranean Biology, vol. 33, pp. 45-69, 2020.

B.  Braschler, Gilgado, J. D., Zwahlen, V., Rusterholz, H. - P., Buchholz, S., and Baur, B., ?Ground-dwelling invertebrate diversity in domestic gardens along a rural-urban gradient: Landscape characteristics are more important than garden characteristics?, PloS ONE, vol. 15, no. 10, pp. 1-25, 2020.

R. V.  Chamberlin, ?The Diplopoda of the Lund University and California Academy of Sciences expeditions?, Lunds universitets årsskrift, n. f., avd. 2, vol. 53, no. 8, pp. 1?44, 1957.

K.  Verhoeff, ?Über Myriapoden von Juan Fernandez und der Osterinsel?, The Natural history of Juan Fernandez and Easter Island, vol. 3, pp. 403?418, 1924.

C. Harvey Bollman, ?Notes on North American Julidæ?, Annals of the New York Academy of Sciences, vol. 4, no. 1-2, pp. 25?44, 1887.