Jamanek, D., et al. “Hydrogenation of C=C Bonds in Styrene-Isoprene-Styrene Block Copolymers in the Presence of Monocyclopentadienyl titanium(IV) Catalytic Systems”. Polimery, vol. 57, no. 4, Apr. 2012, pp. 266-70, https://polimery.ichp.vot.pl/index.php/p/article/view/825.