Источник данных #4396
@article{11554EL, journal={J. Phys. B}, volume={28}, pages={2565--2574}, title={High-Precision Wavelength Measurements of the 1s$^2$ $^1$S-1snp $^1$P Resonance Lines in He-like Nitrogen and Oxygen}, author={L. Engstr\"om and U. Litz\'en}, year={1995}, doi={10.1088/0953-4075/28/13/010}, notes={fnl}}
@article{11554EL, journal={J. Phys. B}, volume={28}, pages={2565--2574}, title={High-Precision Wavelength Measurements of the 1s$^2$ $^1$S-1snp $^1$P Resonance Lines in He-like Nitrogen and Oxygen}, author={L. Engstr\"om and U. Litz\'en}, year={1995}, doi={10.1088/0953-4075/28/13/010}, notes={fnl}}