@article{BelkacemKupkaPhilidetetal., author = {Belkacem, K{\´e}vin and Kupka, Friedrich and Philidet, Jordan and Samadi, R{\´e}za}, title = {Surface effects and turbulent pressure. Assessing the Gas-Γ1 and Reduced-Γ1 empirical models.}, series = {Astronomy \& Astrophysics}, journal = {Astronomy \& Astrophysics}, subject = {Surface}, language = {en} }