1. M. I. Haftel, V. B. Mandelzweig,
"A fast convergent hyperspherical expansion for the helium ground state"
Physics Letters A, Volume 120, Issue 5, 23 February 1987, Pages 232-236
- DOI:
http://dx.doi.org/10.1016/0375-9601(87)90215-5
"Fast convergent hyperspherical harmonic expansion for three-body systems"
Annals of Physics, Volume 188, Issue 2, December 1988, Page 436
- DOI:
http://dx.doi.org/10.1016/0003-4916(88)90108-X