Author: Luigi Format: MarkdownItexAdded something about the relation with sigma-models
<a href="https://ncatlab.org/nlab/revision/diff/beta-gamma+system/6">diff</a>, <a href="https://ncatlab.org/nlab/revision/beta-gamma+system/6">v6</a>, <a href="https://ncatlab.org/nlab/show/beta-gamma+system">current</a>
Added something about the relation with sigma-models