Pesquisando aqui um pouco sobre o formato docbook e intercâmbio de collaborative books do drupal:
http://docbook.sourceforge.net/
http://www.docbook.org/
http://drupalmodules.com/module/book-import
http://drupalmodules.com/module/export-docbook
Archive - abr 11, 2008 - Tópico do fórum
- warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Sao_Paulo' for 'BRT/-3.0/no DST' instead in /var/www/multisite_drupal6/sites/mutgamb.org/modules/archive/archive.pages.inc on line 298.
- warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Sao_Paulo' for 'BRT/-3.0/no DST' instead in /var/www/multisite_drupal6/sites/mutgamb.org/modules/archive/archive.pages.inc on line 299.
- warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Sao_Paulo' for 'BRT/-3.0/no DST' instead in /var/www/multisite_drupal6/sites/mutgamb.org/modules/archive/archive.pages.inc on line 330.
- warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Sao_Paulo' for 'BRT/-3.0/no DST' instead in /var/www/multisite_drupal6/sites/mutgamb.org/modules/archive/archive.pages.inc on line 331.
- warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/Sao_Paulo' for 'BRT/-3.0/no DST' instead in /var/www/multisite_drupal6/sites/mutgamb.org/modules/archive/archive.pages.inc on line 332.