@article{9584, author = {H. Nussbaumer and J. Swings}, title = {Forbidden Emission Lines of MN i and fe II in the Spectra of Long-Period Variables Near Minimum Light.}, year = {1972}, journal = {The Astrophysical Journal}, volume = {172}, pages = {121}, month = {Jan-02-1972}, issn = {0004-637X}, url = {http://adsabs.harvard.edu/full/1972ApJ...172..121N}, doi = {10.1086/151332}, }