Double parton scattering as a source of quarkonia pairs in LHCb

Recent results on production of $J\mathrm{/}\psi$ pairs in LHCb initiated discussion on double parton scattering (DPS) contribution to this process, which is not yet elaborated well. In this short report $J\mathrm{/}\psi {\chi }_c$ and $J\mathrm{/}\psi \mathrm{{\rm Y}}$ modes are proposed for DPS studies. Estimations for $\mathrm{{\rm Y}}\mathrm{{\rm Y}}$ and $J\mathrm{/}\psi \mathrm{{\rm Y}}$ production in LHCb are presented.