@article{KJM_2024_48_2_a5,
     author = {Feng Qi},
     title = {On {Bounds} for {Norms} of {Sine} and {Cosine} {Along} a {Circle} on the {Complex} {Plane}},
     journal = {Kragujevac Journal of Mathematics},
     pages = {255 },
     publisher = {mathdoc},
     volume = {48},
     number = {2},
     year = {2024},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2024_48_2_a5/}
}