Kaczmarczyk, Paweł. 2021. “THE MULTIPLE REGRESSION MODEL WITH DICHOTOMOUS VARIABLES IN ANALYSIS OF MULTI-SECTIONAL DEMAND FOR CONNECTIVITY SERVICES – APPROACH BASED ON PER SECOND BILLING”. Acta Scientiarum Polonorum. Oeconomia 20 (2), 47-57. https://doi.org/10.22630/ASPE.2021.20.2.15.