@article {Diamandis:2015xra,
	title = {{Towards a formulation of $f(R)$ supergravity}},
	journal = {Phys. Rev. D},
	volume = {92},
	number = {10},
	year = {2015},
	pages = {105023},
	doi = {10.1103/PhysRevD.92.105023},
	author = {Diamandis, G. D. and Lahanas, A.B. and Tamvakis, K.}
}
