<XML><RECORDS><RECORD><REFERENCE_TYPE>0</REFERENCE_TYPE><REFNUM>6307</REFNUM><AUTHORS><AUTHOR>Jamieson,M.J.</AUTHOR></AUTHORS><YEAR>1987</YEAR><TITLE>Brillouin Wigner perturbation theory and iteration variation scattering methods</TITLE><PLACE_PUBLISHED>Journal of Physics B: Atomic and Molecular Physics, Vol. 20</PLACE_PUBLISHED><PUBLISHER>N/A</PUBLISHER><PAGES>L659-L663 </PAGES><LABEL>Jamieson:1987:6307</LABEL><ABSTRACT> </ABSTRACT></RECORD></RECORDS></XML>