Augutis, Deividas, and Džigita Nagrockienė. “Physical and Mechanical Properties Research and Analysis of Concrete With Biofuel Combustion Fly Ash Supplement”. Mokslas – Lietuvos ateitis / Science – Future of Lithuania 11 (December 31, 2019). Accessed July 7, 2024. https://jeelm.vgtu.lt/index.php/MLA/article/view/11361.