Zernov, A. E., Зернов, А. Е., & Зернов, А. Е. (2003). Qualitative Investigation of the Singular Cauchy Problem $\sum\limits_{k = 1}^n {(a_{k1} t + a_{k2} x)(x')^k = b_1 t + b_2 x + f(t,x,x'),x(0) = 0}$. Institute of Mathematics, NAS of Ukraine.
Чикаго стиль цитування (17-те видання)Zernov, A. E., А. Е Зернов, та А. Е Зернов. Qualitative Investigation of the Singular Cauchy Problem $\sum\limits_{k = 1}^n {(a_{k1} T + A_{k2} X)(x')^k = B_1 T + B_2 X + F(t,x,x'),x(0) = 0}$. Institute of Mathematics, NAS of Ukraine, 2003.
Стиль цитування MLA (8-ме видання)Zernov, A. E., et al. Qualitative Investigation of the Singular Cauchy Problem $\sum\limits_{k = 1}^n {(a_{k1} T + A_{k2} X)(x')^k = B_1 T + B_2 X + F(t,x,x'),x(0) = 0}$. Institute of Mathematics, NAS of Ukraine, 2003.