1. Where the sum extends over all paths , Formula 40 with the property that Formula 39 and Formula 41 . The analogue expression in quantum mechanics is the path integral .
2. Where the sum extends over all paths , Formula 39 with the property , the Formula 40 and Formula 41 , the analog expression in quantum mechanics is the path integral .

no

1. The 119th squadron of helicopters was formed in May 1968 as part of the 48th transport helicopter regiment at Nis Airport .
2. The 48th helicopter squadron was founded in May 1968 as part of the 119th transport helicopter regiment at Nis Airport .

no

1. From 1931 to the outbreak of the Second World War in Shanghai in 1939 , he worked in Europe .
2. He worked from 1931 until the outbreak of World War II in Europe in 1939 in Shanghai .
no