magnet:?xt=urn:btih:275d9ff3981d13e4da558893958ce84ff7750ea6&xt=urn:md5:3d5b190146109d8acf92a82652dab81b&xl=6557302&dn=5.9.1-0-201706290152qtdatavisualization-documentation.7z&as=https://download.qt.io/online/qtsdkrepository/linux_x64/desktop/qt5_591_src_doc_examples/qt.591.doc.qtdatavis3d/5.9.1-0-201706290152qtdatavisualization-documentation.7z&tr=http://bt.qt-project.org:6969/announce