Modeling the gluon and ghost propagators in Landau gauge by truncated Dyson-Schwinger equations L. P. Kaptari, B. Kämpfer and Pengming Zhang Eur. Phys. J. Plus, 134 8 (2019) 383 Published online: 08 August 2019 DOI: 10.1140/epjp/i2019-12837-1