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    Performance of Selected Diploid Watermelon Pollenizers by J. H. Freeman, G. A. Miller, Stephen M. Olson

    Published 2007-05-01
    “…HS-1081, a 6-page fact sheet by J.H. Freeman, G. A. …”
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    穿山甲的食蚁习性 by 史有青, 汪运根

    Published 1985-01-01
    “…是危害林木和堤坝的白蚊的主要天敌,近几年来,自然界野生穿山甲的数量不断地减少,现列为我国第二类保护动物。我们于1981年…”
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    El FSLN y la «iconización» de Sandino by Catherine Lacaze

    Published 2012-06-01
    “…The selected period of time relates to the armed struggle against the Somocista dictatorship since the 1960’s, once the Sandinista government came to power in 1979, and after setting up the national reconstruction project (1980-1981).…”
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    Recuerdos inolvidables by Martha Barquero Cerdas

    Published 2018-11-01
    “… En 1981 ingresé a la Universidad de Costa Rica como estudiante de la carrera de Bibliotecología con énfasis en Bibliotecas Educativas, por razones personales abandoné mis estudios y estuve fuera de las aulas universitarias durante 14 años aproximadamente, en los cuales añoraba terminar mi carrera. …”
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    Recent developments in the theory of Walsh series by William R. Wade

    Published 1982-01-01
    “…We survey research done on the theory of Walsh series during the decade 1971-1981. Particular attention is given to convergence of Walsh-Fourier series, gap Walsh series, growth of Walsh-Fourier coefficients, dyadic differentiation, and uniqueness of Walsh series.…”
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