@article{650a9fd4bb86479a85ee82900c02920a,
title = "Nitrate and ammonia as nitrogen sources for deep subsurface microorganisms",
keywords = "nitrate reducer, ammonia oxidizer, stable isotope probing, nitrogen cycle, terrestrial deep biosphere, groundwater, crystalline bedrock, nitrogen assimilation",
author = "Heini Kutvonen and Pauliina Rajala and Leena Carp{\'e}n and Malin Bomberg",
year = "2015",
doi = "10.3389/fmicb.2015.01079",
language = "English",
volume = "6",
journal = "Frontiers in Microbiology",
issn = "1664-302X",
publisher = "Frontiers Media SA",
}