The double-edged sword: Gaining Adenosine at the expense of ATP. How to balance the books
S. zur Nedden, A.S. Doney, B.G. Frenguelli, in:, S. Masino, D. Boison (Eds.), Adenosine, 1st ed., Springer, New York, 2012, pp. 109–129.

Modern ionotropic glutamate receptor with a K+ selectivity signature sequence
H.L. Janovjak, G. Sandoz, E. Isacoff, Nature Communications 2 (2011) 1–6.