Editing CRNs with limited geometry (section)

==== Prior work ====
* DSD <ref name="dsd">Lakin, M. R., Youssef, S., Cardelli, L., & Phillips, A. (2012). Abstractions for DNA circuit design. Journal of The Royal Society Interface, 9(68), 470-486.</ref>

** DSD already handles some polymer classes, focused on DNA strand displacement

* BGF: Biochemical ground form <ref name="bgf">Cardelli, L., & Zavattaro, G. (2008). On the computational power of biochemistry. In Algebraic Biology (pp. 65-80). Springer Berlin Heidelberg.</ref>
* Kappa <ref name="kappa">Danos, V., Feret, J., Fontana, W., Harmer, R., & Krivine, J. (2008). Rule-based modelling, symmetries, refinements. In Formal Methods in Systems Biology (pp. 103-122). Springer Berlin Heidelberg.</ref>