Yassen Kasm Yahya, N. and Adrees Hamad Youines, Z. 2019. A Geometric Construction of a (56,2)-Blocking Set in PG(2,19) and on Three Dimensional Linear [325,3,307]_19Griesmer Code. AL-Rafidain Journal of Computer Sciences and Mathematics. 13, 2 (Dec. 2019), 13–25. DOI:https://doi.org/10.33899/csmj.2020.163511 .