Which fields have no maximal subrings ?
Rendiconti del Seminario Matematico della Università di Padova, Volume 126 (2011), p. 213-228
@article{RSMUP_2011__126__213_0,
     author = {Azarang, A. and Karamzadeh, O. A. S.},
     title = {Which fields have no maximal subrings ?},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {126},
     year = {2011},
     pages = {213-228},
     zbl = {1234.13009},
     mrnumber = {2918207},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_2011__126__213_0}
}
Azarang, A.; Karamzadeh, O. A. S. Which fields have no maximal subrings ?. Rendiconti del Seminario Matematico della Università di Padova, Volume 126 (2011) pp. 213-228. http://www.numdam.org/item/RSMUP_2011__126__213_0/