The laboratory news "Unlimited Challenge" is published four times a year from Sep.　　  1998 and  37 charpters have been issued up to now. The editors were Gim Min Ha   and   Jeong Hyeon Jeong .

      Unlimited Challenge 15th  download         Unlimited Challenge 17th  download

     Unlimited Challenge 27th  download         Unlimited Challenge 28th   download

     Unlimited Challenge 29th  download         Unlimited Challenge 31th   download

     Unlimited Challenge 32th  download         Unlimited Challenge 33th  download

     Unlimited Challenge 34th  download         Unlimited Challenge 35th  download

     Unlimited Challenge 36th  download         Unlimited Challenge 37th  download

     Unlimited Challenge 38th  download         Unlimited Challenge 39th  download

     Unlimited Challenge 40th  download         Unlimited Challenge 41th  download