Energy levels for Be I calculated using a model potential and cores approximations

The calculation of the absolute strengths of spectral lines

1949 • 1,238 citations

Atomic polarizabilities and shielding factors

1962 • 866 citations

The Quantum Defect Method

1958 • 406 citations

Computer programs for the calculation of electron-atom collision cross sections. I. General formulation

1972 • 338 citations

Resonances in e^--He⁺scattering and the photoionization of He

1965 • 230 citations

A constructive model potential method for atomic interactions

1974 • 180 citations

A programme for calculating atomic structures

1969 • 176 citations

On the theory of elastic collisions between electrons and hydrogen atoms

1960 • 158 citations

Quantum defect theory II. Illustrative one-channel and two-channel problems

1966 • 155 citations

Computer programs for the calculation of electron-atom collision cross sections. II. A numerical method for solving the coupled integro-differential equations

1974 • 136 citations

Oscillator strengths of transitions in the beryllium sequence

1974 • 122 citations

Far-Ultraviolet Absorption Spectra with Auto-Ionized Levels of Beryllium and Magnesium

1969 • 120 citations

Upper and Lower Bounds to Atomic and Molecular Properties. I. Be-Sequence Oscillator Strengths (Dipole-Length Formulation) for the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>1</mml:mn><mml:mrow><mml:msup><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi> </mml:mi><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mn>2</mml:mn><mml:mrow><mml:msup><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi> </mml:mi><mml:mn>2</mml:mn></mml:mrow></mml…

1973 • 106 citations

Application of Scattering Theory to the Calculation of Alkali Negative-Ion Bound States

1974 • 102 citations

Asymptotic solutions of the coupled equations of electron-atom collision theory for the case of some channels closed

1973 • 90 citations

The photoionization cross section of magnesium near threshold

1973 • 79 citations

The excitation of He⁺by electrons

1964 • 78 citations

Calculations of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>2</mml:mn><mml:mi>s</mml:mi><mml:mi>n</mml:mi><mml:mi>s</mml:mi><mml:mi /><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>S</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>2</mml:mn><mml:mi>p</mml:mi><mml:mn…

1972 • 63 citations

Quantum defect theory X. Photoionization

1973 • 63 citations

A simplified hartree-fock procedure for atoms with two electrons outside closed shells

1964 • 61 citations

Zum Polarisationspotential für Elektronen im Feld eines Atoms oder Atomrumpfes

1960 • 55 citations

Quantum defect theory V. Autoionizing and bound states of the neutral beryllium atom

1967 • 52 citations

A frozen cores approximation for atomic structure calculations

1972 • 49 citations

Quantum-defect analysis of the effects of np^2 terms on the singlet terms of alkaline earths and of their isoelectronic sequences*

1974 • 48 citations

Calculated photoionization cross sections for Be and Mg

1973 • 43 citations

Calculations on bound and autoionizing states, and continuum radiative properties for Li− and Na−

1974 • 40 citations

The calculation of energy levels for atoms in configurations ls²2s²2p^qnl

1971 • 35 citations

Additions to the Displaced Term System of Be I

1974 • 34 citations

The term systems of Be I converging to the Be II 2s limit

1976 • 32 citations

Uniqueness of solutions of the close-coupling equations for electron scattering

1969 • 29 citations

Asymptotic solutions of the coupled equations for electron collisions with positive ions

1969 • 29 citations

The multi-configuration frozen core approximation. I. Eigenstates of the two-electron atom

1971 • 25 citations

Quantum defect theory. IX. Complex quantum defects for the e-Be⁺system

1970 • 13 citations

Polarizability of the Two-Electron Ions

1971 • 7 citations

Rotational structure of the 2250 Angstrom system of the BiF molecule

1969 • 7 citations

Resonance widths in electron-heavy-atom scattering

1970 • 4 citations