F.  Clark and McNeil, D. A. C., ?Geographical distribution of house martin fleas in Leicestershire.?, Transactions of the Leicester Literary and Philosophical Society 75: 11-17., 1981.

F.  Clark and McNeil, D. A. C., ?The variation in population densities of fleas in house martin nests in Leicestershire.?, Ecological Entomology 6(4): 379-386., 1981.

F.  Clark and McNeil, D. A. C., ?Records of fleas from nests of house martins (Delichon urbica urbica (L.)) in Cornwall and Derbyshire.?, Entomologist?s Monthly Magazine 120: 59-62., 1984.

F.  Clark and McNeil, D. A. C., ?Temporal variation in the population densities of fleas in house martin nests (Delichon u. urbica) (Linnaeus) in Leicestershire, UK.?, Entomologist?s Gazette 42(4): 218-288., 1991.