@article{ASNSP_1974_4_1_1-2_81_0,
     author = {Ramachandra, K.},
     title = {A simple proof of the mean fourth power estimate for $\zeta (\frac{1}{2} + it)$ and $L (\frac{1}{2} + it, \chi )$},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {81--97},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 1},
     number = {1-2},
     year = {1974},
     zbl = {0305.10036},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1974_4_1_1-2_81_0/}
}