@article{202104.0698, doi = {10.20944/preprints202104.0698.v1}, url = {https://doi.org/10.20944/preprints202104.0698.v1}, year = 2021, month = {April}, publisher = {Preprints}, author = {Xiao-Jun Yang}, title = {A Direct Approach for the Lindelöf Conjecture Related to Theory of the Riemann Zeta Function}, journal = {Preprints} }