@Article{ RUIZ_SALCEDO:2061-2069,

author = { ENRIQUE RUIZ ARRIOLA and LORENZO LUIS SALCEDO MORENO } ,

title = { SEMICLASSICAL EXPANSION FOR DIRAC HAMILTONIANS },

journal = { MODERN PHYSICS LETTERS A },

year = { 1993 },

volume = { 8 },

issn = { 0217-7323 },

pages = { 2061-2069 },

}