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  1. By: Herrera, Guillermo A - Lavenberg, Robert J.
    Type: Article
    In: Contributions in science
    Volume: 488
    Date: 2002-04-19
    Page Range: 1--15
    Publication Info: Los Angeles, Calif, The Museum, [1957]-
  2. By: Herrera, Guillermo A - Lavenberg, Robert J.
    Type: Article
    In: Contributions in science
    Volume: 478
    Date: 1999-12-17
    Page Range: 1--13
    Publication Info: Los Angeles, Calif, The Museum, [1957]-