Paull, John (2018). "12:The Women Who Tried to Stop the Great War: The International Congress of Women at The Hague 1915". In Campbell, A. H. (ed.). Global Leadership Initiatives for Conflict Resolution and Peacebuilding. Hershey, PA: IGI Global. pp. 249–266. Archived from the original on March 25, 2022. Retrieved May 27, 2021.
Einstein, Albert (November 25, 1915). "Die Feldgleichungen der Gravitation". Sitzungsberichte der Preussischen Akademie der Wissenschaften zu Berlin: 844–847. Archived from the original on July 25, 2023. Retrieved August 27, 2018.
Paull, John (2018). "12:The Women Who Tried to Stop the Great War: The International Congress of Women at The Hague 1915". In Campbell, A. H. (ed.). Global Leadership Initiatives for Conflict Resolution and Peacebuilding. Hershey, PA: IGI Global. pp. 249–266. Archived from the original on March 25, 2022. Retrieved May 27, 2021.
Einstein, Albert (November 25, 1915). "Die Feldgleichungen der Gravitation". Sitzungsberichte der Preussischen Akademie der Wissenschaften zu Berlin: 844–847. Archived from the original on July 25, 2023. Retrieved August 27, 2018.