This is essential, again the 'active outreach' is the only practical way. Specific guidelines for how to include hard-to-reach groups are developed in D3.2 Methodology for the inclusion of hard-to-reach groups (1015.5 KB) "pdf".
This is essential, again the 'active outreach' is the only practical way. Specific guidelines for how to include hard-to-reach groups are developed in D3.2 Methodology for the inclusion of hard-to-reach groups (1015.5 KB) "pdf".