Jacobsen, C. S., de Lipthay, J. R., Bender, M., Fredslund, L., Johnsen, A. R., & Johnsen, K. (2004). Direct analysis of microbial populations in soil and freshwater aquifers using nucleic acid based techniques. GEUS Bulletin, 4, 33–36. https://doi.org/10.34194/geusb.v4.4777