Deep Residual Learning for Image Recognition – Identity Mappings in Deep Residual Networks

TF resnet, An Overview of ResNet and its Variants

The one that I was analyzing (and discussing with Adria about is the type (c) ReLU before addition; see here)

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HIGHWAY AND RESIDUAL NETWORKS LEARN UNROLLED ITERATIVE ESTIMATION

Residual Networks Behave Like Ensembles of Relatively Shallow Networks

Bridging the Gaps Between Residual Learning, Recurrent Neural Networks and Visual Cortex

See also DenseNets, Highway networks