Magzine Name :Tetrahedron Letters, Frequency :52 Issue A Year
      Volume No       Year       Issue       Month
       30        1989        41        JANUARY
       30        1989        01        JANUARY
       30        1989        03        JANUARY
       30        1989        04        JANUARY
       30        1989        05        JANUARY
       30        1989        07        JANUARY
       30        1989        08        JANUARY
       30        1989        09        JANUARY
       30        1989        11        JANUARY
       30        1989        12        JANUARY
       30        1989        13        JANUARY
       30        1989        14        JANUARY
       30        1989        15        JANUARY
       30        1989        16        JANUARY
       30        1989        18        JANUARY
       30        1989        19        JANUARY
       30        1989        20        JANUARY
       30        1989        21        JANUARY
       30        1989        22        JANUARY
       30        1989        23        JANUARY
       30        1989        24        JANUARY
       30        1989        25        JANUARY
       30        1989        26        JANUARY
       30        1989        27        JANUARY
       30        1989        28        JANUARY
       30        1989        29        JANUARY
       30        1989        30        JANUARY
       30        1989        31        JANUARY
       30        1989        32        JANUARY
       30        1989        33        JANUARY
       30        1989        37        JANUARY
       30        1989        38        JANUARY
       30        1989        39        JANUARY
       30        1989        40        JANUARY
       30        1989        41        JANUARY
       30        1989        42        JANUARY
       30        1989        43        JANUARY
       30        1989        46        JANUARY
       30        1989        47        JANUARY
       30        1989        48        JANUARY
       30        1989        49        JANUARY
       30        1989        50        JANUARY
       30        1989        51        JANUARY
       30        1989        02        JANUARY
       30        1989        06        JANUARY
       30        1989        10        JANUARY