@Article{ SALCEDO:831-850,

author = { LORENZO LUIS SALCEDO MORENO } ,

title = { THE METHOD OF COVARIANT SYMBOLS IN CURVED SPACE-TIME },

journal = { EUROPEAN PHYSICAL JOURNAL C },

year = { 2007 },

volume = { 49 },

issn = { 1434-6044 },

pages = { 831-850 },

doi = { http://dx.doi.org/10.1140/epjc/s10052-006-0133-2 },

}