Assessment of competitiveness of rhizobia infecting Galega orientalis on the basis of plant yield, nodulation, and strain identification by antibiotic resistance and PCR - Tas, Eva; Leinonen, Petri; Saano, Aimo; Räsänen, Leena A.; Kaijalainen, Seppo; Piippola, Seija; Hakola, Satu; Lindström, Kristina (American Society for Microbiology, 1996)