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|---|---|---|
 0001140361-11-012197-index-headers.html | 2011-02-25 15:45:47 | |
| 0001140361-11-012197-index.html | 2011-02-25 15:45:47 | |
| 0001140361-11-012197.txt | 2011-02-25 15:45:47 | |
 0001140361-11-012197-xbrl.zip | 142307 | 2011-02-25 15:45:47 |
| defnref.xml | 44269 | 2011-02-25 15:45:47 |
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| ess-20101231_cal.xml | 74474 | 2011-02-25 15:45:47 |
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| ex31_1.htm | 16707 | 2011-02-25 15:45:47 |
| ex31_2.htm | 16420 | 2011-02-25 15:45:47 |
| ex32_1.htm | 5723 | 2011-02-25 15:45:47 |
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 graphic1.jpg | 52834 | 2011-02-25 15:45:47 |
 logo.jpg | 11246 | 2011-02-25 15:45:47 |
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| R10.xml | 28481 | 2011-02-25 15:45:47 |
| R11.xml | 13327 | 2011-02-25 15:45:47 |
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| R18.xml | 143169 | 2011-02-25 15:45:47 |
| R19.xml | 166916 | 2011-02-25 15:45:47 |
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| R22.xml | 14318 | 2011-02-25 15:45:47 |
| R23.xml | 133940 | 2011-02-25 15:45:47 |
| R24.xml | 1570549 | 2011-02-25 15:45:47 |
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| R8.xml | 144681 | 2011-02-25 15:45:47 |
| R9.xml | 106478 | 2011-02-25 15:45:47 |