Atoms I. Vol. 35 of Handbuch der Physik
                                    
                                        
                                        JUN 01, 1957
                                    
                                
                            
                            
                            
                              DOI: 10.1063/1.3060394
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More about the Authors
B. T. Feld. Massachusetts Institute of Technology.
                                © 1957. American Institute of Physics
                            
                            
                        