More than 2200 volunteers took part in the National Day of Nature Parks, organized by the WWF team in Bulgaria for the fifth time. Joint by WWF ambassadors - popular personalities from the Bulgarian ...
Bulgaria is a small Balkan country with a population ... Manolov G, Manolova Y: Marker band in one chromosome 14 from Burkett lymphomas. Nature 1972;237. Manolova Y, Manolov G, Kieler J, Levan ...