Olejnik O. Wouldn’t Mendelson Work Something Out? – Genesis of Polish Socialist Party of the Prussian Partition in the Light of Connections with London’s Socialists. In: Budzyński P, Dawczyk M, Gryglewski K, Ziółkowski M, eds. Vade Nobiscum, Tom XX 2019: Studia Z Historii Politycznej I Wojskowej. Vade Nobiscum. Lodz University Press; 2019:169-185. doi:10.18778/8142-717-3.10