Error message

Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Notice: Trying to access array offset on value of type int in element_children() (line 6595 of /var/www/html/default/includes/common.inc).
Deprecated function: implode(): Passing glue string after array is deprecated. Swap the parameters in drupal_get_feeds() (line 394 of /var/www/html/default/includes/common.inc).
Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in menu_set_active_trail() (line 2405 of /var/www/html/default/includes/menu.inc).

Performance advances in interferometric optical profilers for imaging and testing

Schmit, J., Reed, J., Novak, E. & Gimzewski, J. K. Performance advances in interferometric optical profilers for imaging and testing. Journal of Optics A: Pure and Applied Optics 10, 064001 (2008).