References to Literature
- Ihle , J. E. W. 1922 . On OEsophagostomum opiostomum (Willach, 1891), and some Remarks on the Classification of the Strongylidæ . Bijdr. tot. de Dierk., Amsterdam , xxii : 89 – 93 .
- Railliet , A. and Henry , A. 1913 . Sur les Œsophagostomiens des Ruminants . Bull. Soc. Path. exot. Paris , vi : 507 – 507 .