@article{article3bf72570,
title   = {Phaseolus vulgaris cultivar and rhizobium strain variation in acid-pH tolerance and nodulation under acid conditions},
author = {Vargas, A A T and Graham, P H},
year = {1988},
doi = {10.1016/0378-4290(88)90047-0},
journal   = {Field Crops Research}
}