Stefanov also continued to collaborate with the various socialist groups across the border (the "Narrows", the "Broad Socialists" and the Bulgarian Agrarian National Union).
斯特凡还继续与各种社会主义团体跨界协作，比如“狭义社会主义者”、"广义社会主义者"和保加利亚农业国家联盟)。