LANL:10.1043/0003-0031(2001)145(0080:PSBRBL)2.0.CO;2
LANL:10.1043/0022-2372(2000)081(0676:ROEVTS)2.3.CO;2
LANL:10.1043/0033-7587(2002)157<0003:APIIIT>2.0.CO;2