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title = {{The incidence of apatite-solubilizing organisms in the rhizosphere and soil}},  journal = {Aust. J. Agric. Res.},  }  @article{DUFF_1963,  doi = {10.1097/00010694-196302000-00004},  url = {http://dx.doi.org/10.1097/00010694-196302000-00004},  year = {1963},  month = {feb},  publisher = {Ovid Technologies (Wolters Kluwer Health)},  volume = {95},  number = {2},  pages = {105--114},  author = {R. B. DUFF and D. M. WEBLEY and R. O. SCOTT},  title = {{{SOLUBILIZATION} {OF} {MINERALS} {AND} {RELATED} {MATERIALS} {BY} 2-{KETOGLUCONIC} {ACID}-{PRODUCING} {BACTERIA}}},  journal = {Soil Science},  }