Heikkinen J., Keskinen R., Soinne H., Hyväluoma J., Nikama J., Wikberg H., Källi A., Siipola V., Melkior T., Dupont C., Campargue M., Larsson S.H., Hannula M., Rasa K. Possibilities to improve soil aggregate stability using biochars derived from various biomasses through slow pyrolysis, hydrothermal carbonization, or torrefaction. 2019. Geoderma. 344. 40-49. 10.1016/j.geoderma.2019.02.028.