A fair use statement regarding the full text of the request

Your requested [川东北二叠系-三叠系界线附近微生物岩微观表面特征观察研究] is currently limited to Nanjing Institute of Geology and Palaeonotology, Chinese Academy of Sciences internal sharing.

To solicit author authorization, you need to provide the following information: name, organization, personal e-mail, reason for request. The information you provide will be reviewed and you are committed to the truth of the information provided. The personal information you provide will be protected according to law.


You agree and are willing to abide by the above requirements.