Inter-laboratory evaluation of the ISO standard 11063 “Soil quality — Method to directly extract DNA from soil samples” - Petric, I.; Philippot, L.; Abbate, C.; Bispo, A.; Chesnot, T.; Hallin, S.; Laval, K.; Lebeau, T.; Lemanceau, P.; Leyval, C.; Lindström, K.; Pandard, P.; et al. (Journal of Microbiological Methods, 2011)