D. Aparco-Cardenas, J. F. Gomes, A. X. Falcão, and P. J. de Rezende, “Co-Training with Active Contrastive Learning and Meta-Pseudo-Labeling on 2D Projections for Deep Semi-Supervised Learning”, JBCS, vol. 32, no. 1, pp. 1523–1538, Jun. 2026.