Keiding J, El-Khodary AS, Jespersen JB (1992)
Resistance risk assessment of two insect development inhibitors, diflubenzuron and cyromazine, for control of the housefly Musca domestica L. Part II: Effect of selection pressure in laboratory and field populations
Pest Sci 35: 27

Keiding J, Jespersen JB, El-Khodary AS (1991)
Resistance risk assessment of two insect development inhibitors, diflubenzuron and cyromazine, for control of the housefly Musca domestica. part i: Larvicidal tests with insecticide-resistant laboratory and danish field populations
Pest Sci 32: 187

Sawicki RM, Keiding J (1981)
Factors affecting the sequential acquisition by Danish houseflies (musca domestica L.) of resistance to organophosphorus insecticides
Pest Sci 12: 587

Keiding J (1976)
Resistance to fenitrothion in Danish houseflies, Musca domestica
J Hyg Epidemiol Microbiol Immunol 21: 171

Keiding J (1975)
Problems of housefly (Musca domestica) control due to multiresistance to insesticides
J Hyg Epidemiol Microbiol Immunol 19: 340