Stelmach W., Shahbaz M., Bieganowski A., Kuzyakov Y.:  Sludge C stabilization and mineralization in soil as assessed by 13C natural abundance (2016 r.) 11th International Conference on Agrophysics: Soil, Plant & Climate, Lublin 26-28.09.2016 r. 2016, 47-47

Stelmach W., Shahbaz M., Bieganowski A., Kuzyakov Y.:  Sequestration of sludge C in soil as assessed by 13C abundance and 14C labelling. (2016 r.) 15th International Workshop for Young Scientists, BioPhys Spring 2015 Prague, Czech Republic, 05-06.05.2016 r. 2016, 50-51