1. Asjes, C.J., 1976. Some developments of the virus pathology in lilies in The Netherlands. In: Lily Yearbook 29: 120–126 (North American Lily Society).
2. Asjes, C.J., 1981. Control of stylet-borne virus spread by aphids of tulip breaking virus in lilies and tulip, and hyacinth mosaic virus in hyacinths by pirimicarb and permethrin sprays versus mineral-oil sprays. Mededelingen van de Faculteit voor Landbouwwetenschappen van de Rijksuniversiteit te Gent 46/3: 1073–1077.
3. Asjes, C.J., 1984. Control of field spread of tulip breaking virus inLilium cv. Enchantment by different brands of mineral oil. Crop Protection 3: 11–124.
4. Asjes, C.J., 1985. Control of field spread of non-persistent viruses in flower-bulb crops by synthetic pyrethroid and pirimicarb insecticides, and mineral oils. Crop Protection 4: 485–493.
5. Asjes, C.J., 1989a. De bestrijding van de virusverspreiding in lelies (1). Vakwerk 89: 16–17.