Not only he supported Leo Picard 's Vlaamsche Post , spokesman for the radical activists .
In 1917 he was also one of the sponsors of a delegation of socialist activists to the international socialist peace conference in Stockholm .
Not only he supported Leo Picard 's Vlaamsche Post , spokesman for the radical activists , but in 1917 he was also one of the sponsors of a delegation of socialist activists to the international socialist peace conference in Stockholm .