MICROPROPAGATION IN VITRO OF PLANTS OF FAMILY GENTIANA AND OTHERS ENDEMIC OF PLANTS OF NORTHERN CAUCASUS Статья Rybalko A.A., Titova S.M., Rybalko A.E., Bogatyreva S.N., Kharuta L.G. Biotechnology and the Ecology of Big Cities. Nova Science Publishers, Inc.. 2011. С. 63-70