https://libcom.org/article/history-anarcho-syndicalism-selfed
An excellent 24 unit PDF correspondence course on the history of anarcho-syndicalism and its influence on workers struggles around the world.
anarcho syndicalismhistoryselfedlibcomorg
https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2017.01786/full
Production of pure lines is an important step in biological studies and breeding of many crop plants. The major types of pure lines for biological studies an...
pure linefrontiersacceleratedgenerationselfed