1. On the Conway-Schneeberger fifteen theorem;Bhargava,2000
2. On primitively universal quadratic forms;Budarina;Lith. Math. J.,2010
3. Rational Quadratic Forms;Cassels,1978
4. Universal quadratic forms and the fifteen theorem;Conway,2000
5. On locally primitively universal quadratic forms;Earnest;Ramanujan J.,2020