References
- Babrikov D., Braikov D., Pandeliev S., 2000. Viticulture with Ampelography. Publishing House "Videnov & Son".
- Boidron R., Boursiqnot B. J., Doazan J., Zeclair P., Zegnau M., Walter B., 1995. Catalogue des variéteś, et clones de vigne cultivés en France. CTPS, France.
- Branas J., 1978. Les relations entre la vigne et la système climat sol. I Symposium international sur L'écologie de la vigne. Constanta.
- Crespy A., 1992. Viticulture d'aujourd'hui. Lavoisier, France.
- Galet P., 1993. Précis de viticulture. Ed. Dehan, Montpellier, France.
- Kantarev I., 1973. Guide for practical exercises in winemaking. Publishers "Hr. G. Danov", Plovdiv.
- Katerov K., Peykov V., Ivanov M., 2005. Practical viticulture with ampelography. Publishers "Dionysius", Sofia.
- Penkov M., 2005. Choosing the most suitable lands for establishing new vineyards and fruit orchards in Bulgaria. University Press UASG, Sofia.
- Reynier A., 2001. Manuel de viticulture. Lavoisier, France.
- Tomov T., Rachovski G., Kostadinova S., Manolov I., 1999. Manual in Agrochemistry. Academic Publishing House of the Agricultural University, Plovdiv.
- Totev T., Gribachev P., Nechev H., Artinova M., 1999. Manual for seminars in soil science. Zemizdat, Sofia.