@article{martins_cruz_1998,  title={The Role of the external mycelial network of arbuscular mycorrhizal fungi: III. a study of nitrogen transfer between plants interconnected by a common mycelium},  volume={29},  ISSN={0001-3714},  url={https://doi.org/10.1590/S0001-37141998000400011},  DOI={10.1590/S0001-37141998000400011},  number={4},  journal={Revista de Microbiologia},  publisher={Sociedade Brasileira de Microbiologia},  author={Martins, Marco A. and Cruz, Andre F.},  year={1998},  month={Oct},  pages={289–294} }