Shilla distance-regular graphs. - Jack H. Koolen; Jongyook Park (Eur. J. Comb., 2010)

A relationship between the diameter and the intersection number c 2 for a distance-regular graph. - Jack H. Koolen; Jongyook Park (Des. Codes Cryptogr., 2012)

Distance-regular graphs with a2 or c2 at least half the valency. - Jack H. Koolen; Jongyook Park (J. Comb. Theory A, 2012)

Distance-Regular Graphs with a Relatively Small Eigenvalue Multiplicity. - Jack H. Koolen; Joohyung Kim; Jongyook Park (Electron. J. Comb., 2013)

On electric resistances for distance-regular graphs. - Jack H. Koolen; Greg Markowsky; Jongyook Park (Eur. J. Comb., 2013)

A note on distance-regular graphs with a small number of vertices compared to the valency. - Jack H. Koolen; Jongyook Park (Eur. J. Comb., 2013)

There are only finitely many distance-regular graphs with valency k at least three, fixed ratio k2/k and large diameter. - Jongyook Park; Jack H. Koolen; Greg Markowsky (J. Comb. Theory B, 2013)

Some Results on the Eigenvalues of Distance-Regular Graphs. - Sejeong Bang; Jack H. Koolen; Jongyook Park (Graphs Comb., 2015)

The distance-regular graphs with valency k≥2, diameter D≥3 and kD-1+kD≤2k. - Jongyook Park (Discret. Math., 2017)

Partially metric association schemes with a multiplicity three. - Edwin R. van Dam; Jack H. Koolen; Jongyook Park (J. Comb. Theory B, 2018)

On 2-walk-regular graphs with a large intersection number c2. - Zhi Qiao 003; Jongyook Park; Jack H. Koolen (Eur. J. Comb., 2019)

There Does Not Exist a Distance-Regular Graph with Intersection Array {80, 54, 12; 1, 6, 60}. - Jack H. Koolen; Quaid Iqbal; Jongyook Park; Masood Ur Rehman 001 (Graphs Comb., 2019)

On the nonexistence of pseudo-generalized quadrangles. - Ivan Guo; Jack H. Koolen; Greg Markowsky; Jongyook Park (Eur. J. Comb., 2020)

Augmenting the Delsarte bound: A forbidden interval for the order of maximal cliques in strongly regular graphs. - Gary R. W. Greaves; Jack H. Koolen; Jongyook Park (Eur. J. Comb., 2021)

Thin Q-Polynomial Distance-Regular Graphs Have Bounded c2. - Ying-Ying Tan; Jack H. Koolen; Mengyue Cao; Jongyook Park (Graphs Comb., 2022)

A Spectral Condition for the Existence of the Square of a Path. - Yanhua Zhao; Jongyook Park (Graphs Comb., 2022)

Correction to: Thin Q-Polynomial Distance-Regular Graphs Have Bounded c2. - Ying-Ying Tan; Jack H. Koolen; Mengyue Cao; Jongyook Park (Graphs Comb., 2023)

Sharp spectral bounds for the edge-connectivity of regular graphs. - Suil O; Jeong Rye Park; Jongyook Park; Wenqian Zhang (Eur. J. Comb., 2023)

Bounding the intersection number c2 of a distance-regular graph with classical parameters (D,b,α,β) in terms of b. - Jack H. Koolen; Chenhui Lv; Jongyook Park; Qianqian Yang 006 (Discret. Math., 2025)

Non-existence of two infinite families of strongly regular graphs. - Jack H. Koolen; Brhane Gebremichel; Jeong Rye Park; Jongyook Park (Eur. J. Comb., 2025)