I just ran into a great 35-page-long review article on the LSPI subject, which has open access under the Creative Commons license, for those who are interested and have time. Enjoy!
https://www.sciencedirect.com/science/article/pii/S0360128516300764
Knocking combustion in spark-ignition engines
Zhi Wang (a), (b) Hui Liu (a) Rolf D Reitz (c)
(a) State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, China
(b) Center for Combustion Energy, Tsinghua University, Beijing 100084, China
(c) Engine Research Center, University of Wisconsin-Madison, Madison, WI 53706-1687, USA
Received 17 July 2016, revised 29 March 2017, accepted 29 March 2017, available online 3 May 2017
https://www.sciencedirect.com/science/article/pii/S0360128516300764
Knocking combustion in spark-ignition engines
Zhi Wang (a), (b) Hui Liu (a) Rolf D Reitz (c)
(a) State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, China
(b) Center for Combustion Energy, Tsinghua University, Beijing 100084, China
(c) Engine Research Center, University of Wisconsin-Madison, Madison, WI 53706-1687, USA
Received 17 July 2016, revised 29 March 2017, accepted 29 March 2017, available online 3 May 2017