TY - JOUR T1 - Two alien species of Bidens (Asteraceae) new to the Bulgarian flora. Phytol JF - Balcan Y1 - 2009 A1 - A.S. Petrova A1 - V. Vladimirov SP - 367 EP - 371 VL - 15 IS - 3 ER - TY - JOUR T1 - Morphological and palynological features of the genus Dasypyrum (Poaceae) in Turkey. Phytol JF - Balcan Y1 - 2009 A1 - E. Cabi A1 - E, Cabi SP - 393 EP - 400 VL - 15 IS - 3 ER - TY - JOUR T1 - Erigeron sumatrensis (Asterace ae): a recently recognized alien species in the Bulgarian flora. Phytol JF - Balcan Y1 - 2009 A1 - V. Vladimirov SP - 361 EP - 365 VL - 15 IS - 3 ER -