Intensities of helium Stark lines in the region of levels anticrossing between n = 6 and n = 7R. Drozdowski, J. Kwela and L. WindholzEur. Phys. J. Special Topics, 222 9 (2013) 2301-2308DOI: https://doi.org/10.1140/epjst/e2013-02009-8