Bushev, D. M.; Kal'chuk, I. V. Analyticity and Other Properties of Functionals $I\left(f, p\right)=\int_{A}|f(t)|^p Dt$ and $n(f,p)=\left(\frac{1}{\mu(A)}\int_{A}|f(t)|^p dt\right)^{\frac{1}{p}}$ As Functions of Variable $p$. MFAT 2019, 25 (4), 339-359.