Sure here you go:
Effect of a Hypocaloric Diet, Increased Protein Intake and Resistance Training on Lean Mass Gains and Fat Mass Loss in Overweight Police Officers.
^ this one is really the only study that favors CHY (casein hydrolysate). Those taking CHY, instead of WHY or nothing, have improved body composition and better increases in strength.
Gastric emptying, gastric secretion and enterogastrone response after administration of milk proteins or their peptide hydrolysates in humans.
^ this one basically shows that there is a difference in only 5 minutes of digestion between casein/whey and their respective hydrolysates.
Plasma amino acid response after ingestion of different whey protein fractions.
^ this one actually shows that whey protein isolate (WPI) raised blood amino acids faster than CHY.
Deglaire et al. Hydrolyzed dietary casein as compared with the intact protein reduces postprandial peripheral, but not whole-body, uptake of nitrogen in humans. Am J Clin Nutr. (2009) 90(4):1011-22.
^ this one says that CHY's fast digestion leads to greater digestive losses, more oxidation by deamination, and basically less amino acids for skeletal muscle. This supports that intact protein are actually superior to CHY.