Haar obtained his PhD in mathematics from U Göttingen in 1909. In 1912 he returned to Hungary and after the First World War he founded the Mathematical Centre at Szeged U.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。