4D. Savvas, G. Manos ;Automated Composition Control of Nutrient Solution in Closed Soilless Culture Systems ,Journal of Agricultura Engineering research. 1999,73(1): 29-33.
5H. Altunlu.Postharvest Quality of Cucumber Grown by Soilless Culture.acta horticulture.2000,000(517): 287-292.
6M. Bohme, A. Ouahid, N. Shaban. Reaction of Some Vegetable Crops to Treatments With Lactate as Bioregulator and Fertilizer. acta horticulture.2000,000(514-P4):33-40.
7I. Grafiadellis and K. Mattas. An Economic Analysis of Soilless Culture in Gerbera Production. Hort Science. 2000, 35(2): 300-303.
8A. Pardossi, G. Bagnoli, F. Malorgio, C.A. Campiotti and F.Tognoni. NaCl effects on celery (Apium graveolens L.) grown in NFT. Scientia Horticulturae. 1999,81(3): 229-242.