1. Revision der exogenen und endogenen phase des Entwicklungszyklus und der Pathogenitat von Syngamus (Syngamus) trachea (Montagu, 1811) Chapin, 1925 im Organismus des Endwirtes;Barus;Helminthological Abstracts,1965
2. Two new reservoir hosts of invasive larvae of the nematode Syngamus trachea (Montagu, 1811) Chapin, 1925;Barus;Helminthological Abstracts,1970
3. On nodules occasioned by gapeworms in pheasants;Clapham;Journal of Helminthology,1935
4. On flies as intermediate hosts of Syngamus trachea;Clapham;Journal of Helminthology,1939
5. Three new intermediate vectors for Syngamus trachea;Clapham;Journal of Helminthology,1939