@article{Gerpacio:7650,
      author = {Gerpacio, Roberta V. and Labios, Jocelyn D. and Labios,  Romeo V. and Diangkinay, Emma I.},
      title = {{Maize in the Philippines: Production Systems,  Constraints, and Research Priorities}},
      pages = {46},
      year = {2004},
}