Light penetrates darkness.

The heavy freight traffic which shares the double line between Paddington and Wolverhampton with the passenger traffic has taxed the ingenuity of the timetable planners.

1. Aoki, W., Tsuji, T., and Ohnaka, K. A&A, 333, L19, 1998.
2. Aoki, W., Tsuji, T., and Ohnaka, K. A&A, 350, 945, 1999. […]
3. Bachiller, R., Forveille, T., Huggins, P. J., and Cox, P. A&A, 324, 1123, 1997.

The headmistress was an austere old woman.