2024-03-29T11:44:27Z
https://oai.zbmath.org/v1/
oai:zbmath.org:3266365
0001-01-01T00:00:00
Boardman, J. M.; Steer, B.
1967
3266365
English
EMS Press, Berlin
https://zbmath.org/03266365
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Comment. Math. Helv. 42, 180-221 (1967).
On Hopf invariants
j