@book{ Bauer-_VALERA,

author = { Laurie Bauer- and SALVADOR VALERA HERNÁNDEZ } ,

title = { APPROACHES TO CONVERSION/ZERO-DERIVATION },

publisher = { WAXMANN },

number = { 1 },

address = { MÜNSTER, },

year = { 2005 },

isbn = { 3-8309-1456-3 },

}