The key role in the design and implementation of these projects was played by Austro-Hungarian Minister Benjamin Kalai, who from 1882 to 1903 was responsible for Bosnia and Herzegovina.
Ključnu ulogu u osmišljavanju i sprovođenju spomenutih projekata odigrao je austro-ugarski ministar Benjamin Kallay, koji je od 1882. do 1903. godine bio nadležan za Bosnu i Hercegovinu.