ty -jour au -filho，D。C. de Morais au -Miyagaki，O。H. Py -2005 DA -1900/01/01 TI-无界域SP -423151 VL -423151 VL -2005 AB -2005 AB -SN -SN -1085-3375 UR -HTTPS：//doi.org/10.1155/aaa.2005.639 do -10.1155/aaa.2005.639 JF-摘要和应用分析PB -Hindawi Publishing Corporation KW -er- ER-