Magzine Name :Earthquake Spectra: The Professional Journal Of The Earthquake Engineering Research Institute, Frequency :Quarterly
      Volume No       Year       Issue       Month
       30        2014        04        NOVEMBER
       30        2014        03        AUGUST
       30        2014        02        MAY
       30        2014        01        FEBRUARY
       29        2013        04        NOVEMBER
       29        2013        03        AUGUST
       29        2013        02        MAY
       29        2013        S1        MARCH
       29        2013        01        FEBRUARY