https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763009176942&signature=bed3729e4ff1b0e0f2cd7269912c85f5&articleTitle=Critical+Excitation+Methods+in+Earthquake+Engineering&articleAuthor=Izuru+Takewaki&publicationTitle=Critical+Excitation+Methods+in+Earthquake+Engineering&language=&publicationType=1&publishYear=2007&isn=9780080453095&publisher=