Noga Alon, András Hajnal. Ramsey graphs contain many distinct induced subgraphs. Graphs and Combinatorics, 7(1):1-6, 1991. [doi]
@article{AlonH91,
title = {Ramsey graphs contain many distinct induced subgraphs},
author = {Noga Alon and András Hajnal},
year = {1991},
doi = {10.1007/BF01789457},
url = {http://dx.doi.org/10.1007/BF01789457},
researchr = {https://researchr.org/publication/AlonH91},
cites = {0},
citedby = {0},
journal = {Graphs and Combinatorics},
volume = {7},
number = {1},
pages = {1-6},
}