Proof, de jure a investigation

[MichaelGut]

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http://ezproxy.cityu.edu.hk/login?url=h ... rary-70376
http://ezproxy.cityu.edu.hk/login?url=h ... -her-85902
http://ezproxy.cityu.edu.hk/login?url=h ... iper-87311
https://bbs.pku.edu.cn/v2/jump-to.php?u ... rt-1-39770
http://ezproxy.cityu.edu.hk/login?url=h ... er-6-26022
http://ezproxy.cityu.edu.hk/login?url=h ... cock-98921
http://ezproxy.cityu.edu.hk/login?url=h ... wish-21944
http://ezproxy.cityu.edu.hk/login?url=h ... sion-93619
http://ezproxy.cityu.edu.hk/login?url=h ... o-far-6227
http://ezproxy.cityu.edu.hk/login?url=h ... rt-i-53736