64

Paying for primary care—Time for a change?

Year:
1980
Language:
english
File:
PDF, 337 KB
english, 1980
98

Linear operators strongly preserving r -cyclic matrices over semirings

Year:
1993
Language:
english
File:
PDF, 553 KB
english, 1993
99

Zero-term rank preservers ∗

Year:
2001
Language:
english
File:
PDF, 221 KB
english, 2001