Magzine Name :Communications Of The Acm, Frequency :Monthly
      Volume No       Year       Issue       Month
       42        1999        02        FEBRUARY
       42        1999        01        JANUARY
       12        1998        12        DECEMBER
       41        1998        12        DECEMBER
       41        1998        11        NOVEMBER
       41        1998        09        SEPTEMBER
       41        1998        08        AUGUST
       41        1998        07        JULY
       41        1998        06        JUNE
       41        1998        05        MAY
       32        1989        08        AUGUST
       32        1989        03        MARCH
       32        1989        02        FEBRUARY
       32        1989        01        JANUARY
       31        1988        12        DECEMBER
       31        1988        10        OCTOBER
       31        1988        08        AUGUST
       31        1988        06        JUNE
       31        1988        04        APRIL
       31        1988        02        FEBRUARY
       31        1988        01        JANUARY
       30        1987        12        DECEMBER
       30        1987        11        NOVEMBER
       30        1987        10        OCTOBER
       30        1987        09        SEPTEMBER
       30        1987        07        JULY
       25        1982        12        DECEMBER
       25        1982        11        NOVEMBER
       25        1982        10        OCTOBER
       25        1982        09        SEPTEMBER
       25        1982        08        AUGUST
       25        1982        07        JULY
       25        1982        06        JUNE
       25        1982        05        MAY
       25        1982        04        APRIL
       25        1982        03        MARCH
       25        1982        02        FEBRUARY
       25        1982        01        JANUARY
       24        1981        12        DECEMBER
       24        1981        11        NOVEMBER
       24        1981        10        OCTOBER
       24        1981        09        SEPTEMBER
       24        1981        08        AUGUST
       24        1981        07        JULY
       24        1981        06        JUNE
       24        1981        05        MAY
       24        1981        04        APRIL
       24        1981        03        MARCH
       24        1981        02        FEBRUARY
       24        1981        01        JANUARY
       23        1980        12        DECEMBER
       23        1980        11        NOVEMBER
       23        1980        10        OCTOBER
       23        1980        09        SEPTEMBER
       23        1980        08        AUGUST
       23        1980        07        JULY
       21        1978        11        NOVEMBER
       21        1978        10        OCTOBER
       21        1978        09        SEPTEMBER
       21        1978        08        AUGUST
       21        1978        07        JULY
       21        1978        06        JUNE
       21        1978        05        MAY
       21        1978        04        APRIL
       21        1978        03        MARCH
       21        1978        02        FEBRUARY
       21        1978        01        JANUARY
       20        1977        12        DECEMBER
       20        1977        11        NOVEMBER
       20        1977        10        OCTOBER
       20        1977        09        SEPTEMBER
       20        1977        08        AUGUST
       20        1977        04        APRIL
       20        1977        02        FEBRUARY