Information Journal Paper
APA:
CopyDUFFIN, R.J., & SCHAEFFER, A.C.. (1952). A CLASS OF NONHARMONIC FOURIER SERIES. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, 72(2), 341-366. SID. https://sid.ir/paper/600862/en
Vancouver:
CopyDUFFIN R.J., SCHAEFFER A.C.. A CLASS OF NONHARMONIC FOURIER SERIES. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY[Internet]. 1952;72(2):341-366. Available from: https://sid.ir/paper/600862/en
IEEE:
CopyR.J. DUFFIN, and A.C. SCHAEFFER, “A CLASS OF NONHARMONIC FOURIER SERIES,” TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, vol. 72, no. 2, pp. 341–366, 1952, [Online]. Available: https://sid.ir/paper/600862/en