Man pages matching name globus_ftp_control_dcau_u in section 3:

globus_ftp_control_dcau_u.3.en	debian 10 / libglobus-ftp-control-doc
globus_ftp_control_dcau_u.3.en	debian 11 / libglobus-ftp-control-doc
globus_ftp_control_dcau_u.3.en	debian 12 / libglobus-ftp-control-doc