1. Alphen , J. J. M. van 1972 Enige aspecten van de biologie van Trialeurodes vaporariorum (Westwood) en Encarsia formosa Gahan Unpublished Ph. D. thesis
2. The parasite-host relationship between Encarsia formosa (Hymenoptera: Aphelinidae) and Trialeurodes vaporariorum (Homoptera: Aleyrodidae). VII. The importance of host feeding as a mortality factor in greenhouse whitefly nymphs;Alphen;Bull. O.I.L.B./S.R.O.P.,1976
3. Indagini su Trialeurodes vaporariorum ed Encarsia tricolor in pien'aria;Arzone;Inf. tore fitopatol.,1976
4. Indagini biologiche su Encarsia tricolor Foerst. (Hym., Aphelinidae), parassita endofago di Trialeurodes vaporariorum Westw. (Hem., Hom., Aleyrodidae);Arzone;Bolletino di zoologia agraria e di bachicoltura,1977
5. Determination of host-plant quality of eggplant (Solanum melongena L.), cucumber (Cucumis sativus L.), tomato (Lycopersicum esculentum L.) and paprika (Capsicum annuum L.) for the greenhouse whitefly (Trialeurodes vaporariorum [Westwood]) (Homoptera: Aleyrodidae). Proc. Int. Symp. on Crop Protection, Med. Fac.;Boxtel;Landbouww. Rijksuniv. Gent.,1978