@article{Duarte2003,
  author    = {Rodrigo Antonio de Paiva Duarte},
  title     = {Esquematismo e semiforma{\c{c}}{\~a}o},
  journal   = {Educa{\c{c}}{\~a}o \& Sociedade},
  volume    = {24},
  number    = {83},
  pages     = {441 -- 457},
  doi       = {10.1590/S0101-73302003000200007},
  year      = {2003},
}