Geodesic
The rational homology ring of the based loop space of the gauge groups and the spaces of connections on a~four-manifold
Fundamentalʹnaâ i prikladnaâ matematika, Tome 21 (2016) no. 6, pp. 205-215.

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We provide a rational-homotopic proof that the ranks of the homotopy groups of a simply connected four-manifold depend only on its second Betti number. We also consider the based loop spaces of the gauge groups and the spaces of connections of a simply connected four-manifold and, using the models from rational homotopy theory, we obtain explicit formulas for their rational Pontryagin homology rings. 
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S. Terzić. The rational homology ring of the based loop space of the gauge groups and the spaces of connections on a~four-manifold. Fundamentalʹnaâ i prikladnaâ matematika, Tome 21 (2016) no. 6, pp. 205-215. http://geodesic.mathdoc.fr/item/FPM_2016_21_6_a9/

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