Scaling up Test-Time Compute with Latent Reasoning: A Recurrent Depth Approach - Geiping, Jonas; McLeish, Sean; Jain, Neel; Kirchenbauer, John; Singh, Siddharth; Bartoldson, Brian; Kailkhura, Bhavya; Bhatele, Abhinav; Goldstein, Tom (Advances in Neural Information Processing Systems, 2025)