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|---|---|---|
 0001193125-18-042268-index-headers.html | 2018-02-13 15:03:15 | |
| 0001193125-18-042268-index.html | 2018-02-13 15:03:15 | |
| 0001193125-18-042268.txt | 2018-02-13 15:03:15 | |
 0001193125-18-042268-xbrl.zip | 76244 | 2018-02-13 15:03:15 |
 BarChart1.png | 29193 | 2018-02-13 15:03:15 |
 BarChart2.png | 29840 | 2018-02-13 15:03:15 |
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| bbcfi-20180125_cal.xml | 4747 | 2018-02-13 15:03:15 |
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| bbcfi-20180125_lab.xml | 152500 | 2018-02-13 15:03:15 |
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| d512330d485bpos.htm | 73175 | 2018-02-13 15:03:15 |
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| R10.htm | 133935 | 2018-02-13 15:03:15 |
| R15.htm | 213379 | 2018-02-13 15:03:15 |
| R16.htm | 7499 | 2018-02-13 15:03:15 |
| R2.htm | 155000 | 2018-02-13 15:03:15 |
| R9.htm | 268223 | 2018-02-13 15:03:15 |
| report.css | 2767 | 2018-02-13 15:03:15 |
| Show.js | 1410 | 2018-02-13 15:03:15 |