James B. Shearer, Robert J. McEliece. There is no MacWilliams identity for convolutional codes (Corresp.). IEEE Transactions on Information Theory, 23(6):775-776, 1977. [doi]
@article{ShearerM77,
title = {There is no MacWilliams identity for convolutional codes (Corresp.)},
author = {James B. Shearer and Robert J. McEliece},
year = {1977},
doi = {10.1109/TIT.1977.1055785},
url = {http://dx.doi.org/10.1109/TIT.1977.1055785},
researchr = {https://researchr.org/publication/ShearerM77},
cites = {0},
citedby = {0},
journal = {IEEE Transactions on Information Theory},
volume = {23},
number = {6},
pages = {775-776},
}