http://arxiv.org/abs/1101.0797v5

https://www.bing.com/ck/a?!&&p=4084353cf4725e39cc75dd3bb78487d013110dd56fc8bf32a88b7ac0380254c7JmltdHM9MTc3MjY2ODgwMA&ptn=3&ver=2&hsh=4&fclid=38709e78-ef67-6cbd-184d-896cee916d00&u=a1aHR0cHM6Ly9kZXZmb3J1bS5yb2Jsb3guY29tL3QvY29tcGxldGluZy10aGUtZHluYW1pYy1oZWFkLW1pZ3JhdGlvbi80MzAxMzg3&ntb=1

http://arxiv.org/abs/0901.2288v1

https://github.com/fudan-zvg/SOFT

http://arxiv.org/abs/1403.7058v2

http://arxiv.org/abs/2207.10097v3

http://arxiv.org/abs/1706.09279v1

http://arxiv.org/abs/1804.10010v2

http://arxiv.org/abs/1301.0793v1

http://arxiv.org/abs/2202.07652v1

http://arxiv.org/abs/2310.14185v1

http://arxiv.org/abs/1709.03871v2

http://arxiv.org/abs/chao-dyn/9408001v1

http://arxiv.org/abs/2507.10619v1

http://arxiv.org/abs/1606.09224v1

http://arxiv.org/abs/1812.07793v3

https://books.google.com/books?id=ytk5DwAAQBAJ&pg=PT402

http://arxiv.org/abs/2007.02533v1

https://www.bing.com/ck/a?!&&p=cc2f01c37f7c9d12a330b865f42b5267872502b31a843a59c60aeb8f0a75cb7eJmltdHM9MTc3MjU4MjQwMA&ptn=3&ver=2&hsh=4&fclid=3f907ebf-cb5f-63fa-338f-69acca1b62d4&u=a1aHR0cHM6Ly9hYmNuZXdzLmNvbS9TcG9ydHMvd2lyZVN0b3J5LzEwMC1kYXlzLXdvcmxkLWN1cC1mYWNlcy1uZXctY2hhbGxlbmdlcy1pcmFuLTEzMDczMjMyNA&ntb=1

https://www.bing.com/ck/a?!&&p=c231eb322da8f59a7719ce85157459cd96a27a313b5f9b35b27da630c0f7d919JmltdHM9MTc3MjU4MjQwMA&ptn=3&ver=2&hsh=4&fclid=3f907ebf-cb5f-63fa-338f-69acca1b62d4&u=a1aHR0cHM6Ly93d3cudGhlbmF0aW9uYWxoZXJhbGQuY29tL3dpdGgtMTAwLWRheXMtdG8tZ28td29ybGQtY3VwLWZhY2VzLW5ldy1jaGFsbGVuZ2VzLXdpdGgtaXJhbi13YXItYW5kLW1leGljby12aW9sZW5jZS8&ntb=1