1.

The next 16 higher spin currents and threepoint functions in the large N=4 holography
/ Ahn, Changhyun ; Kim, Donggyu ; Kim, Man Hea
By using the known operator product expansions (OPEs) between the lowest 16 higher spin currents of spins (1,32,32,32,32,2,2,2,2,2,2,52,52,52,52,3) in an extension of the large N=4 linear superconformal algebra, one determines the OPEs between the lowest 16 higher spin currents in an extension of the large N=4 nonlinear superconformal algebra for generic N and k . [...]
Published in EPJC 77 (2017) 523
10.1140/epjc/s1005201750646
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2.

The operator product expansion between the 16 lowest higher spin currents in the N=4 superspace
/ Ahn, Changhyun ; Kim, Man Hea
Some of the operator product expansions (OPEs) between the lowest 16 higher spin currents of spins (1,32,32,32,32,2,2,2,2,2,2,52,52,52,52,3) in an extension of the large N=4 linear superconformal algebra were constructed in N=4 superconformal coset SU(5)SU(3) theory previously. [...]
Published in EPJC 76 (2016) 389
10.1140/epjc/s1005201642342
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