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ACTA issues
87:3-4(2021)
87:1-2(2021)
86:3-4(2020)
86:1-2(2020)
85:3-4(2019)
85:1-2(2019)
84:3-4(2018)
84:1-2(2018)
83:3-4(2017)
83:1-2(2017)
82:3-4(2016)
82:1-2(2016)
81:3-4(2015)
81:1-2(2015)
80:3-4(2014)
80:1-2(2014)
79:3-4(2013)
79:1-2(2013)
78:3-4(2012)
78:1-2(2012)
77:3-4(2011)
77:1-2(2011)
76:3-4(2010)
76:1-2(2010)
75:3-4(2009)
75:1-2(2009)
74:3-4(2008)
74:1-2(2008)
73:3-4(2007)
73:1-2(2007)
72:3-4(2006)
72:1-2(2006)
71:3-4(2005)
71:1-2(2005)
70:3-4(2004)
70:1-2(2004)
69:3-4(2003)
69:1-2(2003)
68:3-4(2002)
68:1-2(2002)
67:3-4(2001)
67:1-2(2001)
66:3-4(2000)
66:1-2(2000)
65:3-4(1999)
65:1-2(1999)
64:3-4(1998)
64:1-2(1998)
63:3-4(1997)
63:1-2(1997)
62:3-4(1997)
62:1-2(1996)
61:1-4(1995)
60:3-4(1995)
60:1-2(1995)
59:3-4(1994)
59:1-2(1994)
58:1-4(1993)
57:1-4(1993)
56:3-4(1992)
56:1-2(1992)
55:3-4(1991)
55:1-2(1991)
54:3-4(1990)
54:1-2(1990)
53:3-4(1989)
53:1-2(1989)
52:3-4(1988)
52:1-2(1988)
51:3-4(1987)
51:1-2(1987)
50:3-4(1986)
50:1-2(1986)
49:1-4(1985)
48:1-4(1985)
47:3-4(1984)
47:1-2(1984)
46:1-4(1983)
45:1-4(1983)
44:3-4(1982)
44:1-2(1982)
43:3-4(1981)
43:1-2(1981)
42:3-4(1980)
42:1-2(1980)
41:3-4(1979)
41:1-2(1979)
40:3-4(1978)
40:1-2(1978)
39:3-4(1977)
39:1-2(1977)
38:3-4(1976)
38:1-2(1976)
37:3-4(1975)
37:1-2(1975)
36:3-4(1974)
36:1-2(1974)
35:1-4(1973)
34:1-4(1973)
33:3-4(1972)
33:1-2(1972)
32:3-4(1971)
32:1-2(1971)
31:3-4(1970)
31:1-2(1970)
30:3-4(1969)
30:1-2(1969)
29:3-4(1968)
29:1-2(1968)
28:3-4(1967)
28:1-2(1967)
27:3-4(1966)
27:1-2(1966)
26:3-4(1965)
26:1-2(1965)
25:3-4(1964)
25:1-2(1964)
24:3-4(1963)
24:1-2(1963)
23:3-4(1962)
23:1-2(1962)
22:3-4(1961)
22:1-2(1961)
21:3-4(1960)
21:1-2(1960)
20:4-4(1959)
20:2-3(1959)
20:1-1(1959)
19:3-4(1958)
19:1-2(1958)
18:3-4(1957)
18:1-2(1957)
17:3-4(1956)
17:1-2(1956)
16:3-4(1955)
16:1-2(1955)
15:3-4(1953-54)
15:2-2(1953-54)
15:1-1(1953-54)
14:4-4(1951-52)
14:3-3(1951-52)
14:2-2(1951-52)
14:1-1(1951-52)
13:3-4(1949-50)
13:2-2(1949-50)
13:1-1(1949-50)
12:B-B(1950)
12:A-A(1950)
11:4-4(1946-48)
11:3-3(1946-48)
11:1-2(1946-48)
10:3-4(1941-43)
10:2-2(1941-43)
10:1-1(1941-43)
9:4-4(1938-40)
9:3-3(1938-40)
9:2-2(1938-40)
9:1-1(1938-40)
8:4-4(1936-37)
8:2-3(1936-37)
8:1-1(1936-37)
7:4-4(1934-35)
7:3-3(1934-35)
7:2-2(1934-35)
7:1-1(1934-35)
6:4-4(1932-34)
6:2-3(1932-34)
6:1-1(1932-34)
5:3-4(1930-32)
5:2-2(1930-32)
5:1-1(1930-32)
4:4-4(1928-29)
4:3-3(1928-29)
4:1-2(1928-29)
3:4-4(1927)
3:2-3(1927)
3:1-1(1927)
2:4-4(1924-26)
2:3-3(1924-26)
2:2-2(1924-26)
2:1-1(1924-26)
1:4-4(1922-23)
1:3-3(1922-23)
1:2-2(1922-23)
1:1-1(1922-23)
The ring $N^+$ is not adequate
E. Nordgren
Acta Sci. Math. (Szeged)
36:1-2(1974), 203-204
4587/2009