Costa JO, Maria APJ, Pereira PAA, Freitas EF, Soares FEC. Portuguese two-lane highways: modelling crash frequencies for different temporal and spatial aggregation of crash data. Transport [Internet]. 2018Jan.26 [cited 2024Dec.19];33(1):92-103. Available from: https://jau.vgtu.lt/index.php/Transport/article/view/138