Minimal Viable Plasma:

1. https://ethresear.ch/t/minimal-viable-plasma/426

More Viable Plasma:

1. https://ethresear.ch/t/more-viable-plasma/2160

Plasma Cash:

1. https://ethresear.ch/t/plasma-xt-plasma-cash-with-much-less-per-user-data-checking/1926

2. https://ethresear.ch/t/plasma-cash-was-a-transaction-format/4261

3. https://ethresear.ch/t/plasma-cash-plasma-with-much-less-per-user-data-checking/1298

4. https://ethresear.ch/t/plasma-cash-minimal-atomic-swap/3409

5. https://ethresear.ch/t/plasma-cash-defragmentation/3410

Plasma Leap:

1. https://ethresear.ch/t/plasma-leap-a-state-enabled-computing-model-for-plasma/3539

Plasma Debit:

1. https://ethresear.ch/t/plasma-debit-arbitrary-denomination-payments-in-plasma-cash/2198

Plasma Cashflow:

1. https://hackmd.io/DgzmJIRjSzCYvl4lUjZXNQ?view#Introduction

RSA accumulators:

1. https://ethresear.ch/t/rsa-accumulators-for-plasma-cash-history-reduction/3739

Plasma Prime:

1. https://ethresear.ch/t/plasma-prime-design-proposal/4222

SNARK Plasma:

1. https://ethresear.ch/t/plasma-is-plasma/2195