Analytic baby skyrmions at finite density Marco Barsanti, Stefano Bolognesi, Fabrizio Canfora and Gianni Tallarita Eur. Phys. J. C, 80 12 (2020) 1201 Published online: 28 December 2020 DOI: 10.1140/epjc/s10052-020-08683-4