diff --git a/src/time_integration/paired_explicit_runge_kutta/methods_PERK2.jl b/src/time_integration/paired_explicit_runge_kutta/methods_PERK2.jl
index d4a66af7fdd..141cdbbefcb 100644
--- a/src/time_integration/paired_explicit_runge_kutta/methods_PERK2.jl
+++ b/src/time_integration/paired_explicit_runge_kutta/methods_PERK2.jl
@@ -91,12 +91,12 @@ end
     PERK2()
 
 The following structures and methods provide a minimal implementation of
-the second-order paired explicit Runge-Kutta method
+the second-order paired explicit Runge-Kutta (PERK) method
 optimized for a certain simulation setup (PDE, IC & BC, Riemann Solver, DG Solver).
 
-- Vermeire (2019).
-Paired explicit Runge-Kutta schemes for stiff systems of equations
-[DOI: 10.1016/j.jcp.2019.05.014](https://doi.org/10.1016/j.jcp.2019.05.014)
+- Brian Vermeire (2019).
+  Paired explicit Runge-Kutta schemes for stiff systems of equations
+  [DOI: 10.1016/j.jcp.2019.05.014](https://doi.org/10.1016/j.jcp.2019.05.014)
 """
 
 mutable struct PERK2 <: PERKSingle
@@ -104,8 +104,8 @@ mutable struct PERK2 <: PERKSingle
 
     a_matrix::Matrix{Float64}
     c::Vector{Float64}
-    bS::Float64
     b1::Float64
+    bS::Float64
     c_end::Float64
 
     # Constructor that reads the coefficients from a file