", , " . ()
| , | ||
|---|---|---|
|
10.09 12.09.2013 |
Expogaz - 2013 | |
|
13.09 15.09.2011 |
Expogaz - 2011 | |
|
15.09 17.09.2009 |
Expogaz - 2009 | |
|
11.09 13.09.2007 |
Expogaz - 2007 | |
|
13.06 14.06.2007 |
IADC World Drilling - 2007 | |
|
13.09 15.09.2005 |
Expogaz - 2005 27- | |
|
11.09 14.09.2005 |
AAPG 2005 - |