TY  - JOUR
AU  - Sun, Zhi-Wei
TI  - The tangent function and power residues modulo primes
JO  - Czechoslovak Mathematical Journal
PY  - 2023
SP  - 971
EP  - 978
VL  - 73
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2023.0395-22/
DO  - 10.21136/CMJ.2023.0395-22
LA  - en
ID  - 10_21136_CMJ_2023_0395_22
ER  -