Correction ((22)) : « ∫ δ p Δ + d ϕ d t … {\displaystyle \int {\frac {\delta p}{\Delta }}+{\frac {\operatorname {d} \phi }{\operatorname {d} t}}\ldots } (22) » → « ∫ δ p Δ = d ϕ d t … {\displaystyle \int {\frac {\delta p}{\Delta }}={\frac {\operatorname {d} \phi }{\operatorname {d} t}}\ldots } (22) » (coquille : cf. (18))
