April 2013

  1. 10.5505/apjes.2013.83997
  2. 10.5505/apjes.2013.54264
  3. 10.5505/apjes.2013.99609
  4. 10.5505/apjes.2013.55264
  5. 10.5505/apjes.2013.98608
  6. 10.5505/apjes.2013.32042
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