TY  - JOUR
PY  - 1958//
TI  - Road Research
JO  - OR: Operational research quarterly (1953)
SP  - 302
EP  - 306
VL  - 9
IS  - 4
N2  - <p>[Abstract unavailable]</p> 
LA  - 
SN  - 1473-2858
UR  - http://dx.doi.org/
ID  - ref1
ER  -