BORISOVA, A. (2005). PRELIMINARY RESULTS OF THE STUDY ON THE SPREAD OF APPLE CHLOROTIC LEAF SPOT VIRUS (ACLSV) IN DIFFERENT FRUIT TREE SPECIES IN KYUSTENDIL REGION OF BULGARIA. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 33(1), 82–86. https://doi.org/10.15835/nbha331224