00358nam a2200133Ia 4500 211214s9999 xx 000 0 und d Jayakar Knowledge Resource Centre Ritt, J F Differential algebra. Amercan Mathematical Society New York 1950 viii,184 p. Mathematics, 1 37422 37422 0 0 0 0 2 2 2 0000-00-00 0 B33 Io 34811 2021-12-30 0000-00-00 1