Analysis of information sources in references of the Wikipedia article "一級方程式賽車大獎賽列表" in Chinese language version.
The minimum race distance was reduced from 500 km (311 miles) to 300 km (186 miles), allowing the Monaco Grand Prix to be re-introduced after a two-year interval in 1950
The minimum race distance was reduced from 500 km (311 miles) to 300 km (186 miles), allowing the Monaco Grand Prix to be re-introduced after a two-year interval in 1950
