diff --git a/strategies/internal-bar-strength-band/README.md b/strategies/internal-bar-strength-band/README.md
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 # Internal Bar Strength Band
 
+This strategy is based on the [Internal Bar Strength (IBS) indicator](https://moshferatu.dev/moshferatu/ninjatrader/src/branch/main/indicators/internal-bar-strength) and the rules were taken from Quantitativo's [Quant Trading Rules](https://www.quantitativo.com/p/a-mean-reversion-strategy-with-211).
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