Семенова, Н.К. Выделение гумусовых кислот и железа из природных вод и их количественное определение / Н. К. Семенова. — с.163-175. — Электрон. текстовые дан. // Известия Тимирязевской сельскохозяйственной академии: Научно-теоретический журнал Российского государственного аграрного университета - МСХА имени К.А. Тимирязева. – 1978. – Вып. 6. — Коллекция: Журнал «Известия ТСХА». — http://elib.timacad.ru/dl/full/21-1978-6.pdf. - Загл. с титул. экрана. — <URL:http://elib.timacad.ru/dl/full/21-1978-6.pdf>.
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Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2020
|
Quarter 1
|
March
|
4
|
0
|
3
|
0
|
7
|
|
Quarter 2
|
April
|
0
|
0
|
0
|
0
|
0
|
|
May
|
0
|
0
|
2
|
0
|
2
|
|
June
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 3
|
July
|
0
|
0
|
0
|
0
|
0
|
|
August
|
0
|
0
|
1
|
0
|
1
|
|
September
|
3
|
0
|
5
|
0
|
8
|
|
Quarter 4
|
October
|
5
|
0
|
8
|
0
|
13
|
|
November
|
1
|
0
|
3
|
0
|
4
|
|
December
|
3
|
0
|
0
|
0
|
3
|
|
Year 2021
|
Quarter 1
|
January
|
3
|
0
|
1
|
0
|
4
|
|
February
|
0
|
0
|
0
|
0
|
0
|
|
March
|
2
|
0
|
2
|
0
|
4
|
|
Quarter 2
|
April
|
1
|
0
|
2
|
0
|
3
|
|
May
|
6
|
0
|
1
|
0
|
7
|
|
June
|
3
|
0
|
4
|
0
|
7
|
|
Quarter 3
|
July
|
3
|
0
|
5
|
0
|
8
|
|
August
|
2
|
0
|
3
|
0
|
5
|
|
September
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 4
|
October
|
5
|
0
|
2
|
0
|
7
|
|
November
|
0
|
0
|
2
|
0
|
2
|
|
December
|
1
|
0
|
4
|
0
|
5
|
|
Year 2022
|
Quarter 1
|
January
|
2
|
0
|
3
|
0
|
5
|
|
February
|
5
|
0
|
0
|
0
|
5
|
|
March
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 2
|
April
|
5
|
0
|
2
|
0
|
7
|
|
May
|
1
|
0
|
0
|
0
|
1
|
|
June
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 3
|
July
|
4
|
0
|
1
|
0
|
5
|
|
August
|
3
|
0
|
1
|
0
|
4
|
|
September
|
2
|
0
|
2
|
0
|
4
|
|
Quarter 4
|
October
|
3
|
0
|
1
|
0
|
4
|
|
November
|
0
|
0
|
1
|
0
|
1
|
|
December
|
0
|
0
|
1
|
0
|
1
|
|
Year 2023
|
Quarter 1
|
January
|
1
|
0
|
0
|
0
|
1
|
|
February
|
2
|
0
|
3
|
0
|
5
|
|
March
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 2
|
April
|
2
|
0
|
2
|
0
|
4
|
|
May
|
1
|
0
|
3
|
0
|
4
|
|
June
|
0
|
0
|
4
|
0
|
4
|
|
Quarter 3
|
July
|
1
|
0
|
2
|
0
|
3
|
|
August
|
1
|
0
|
2
|
0
|
3
|
|
September
|
1
|
0
|
0
|
0
|
1
|
|
Quarter 4
|
October
|
3
|
0
|
1
|
0
|
4
|
|
November
|
1
|
0
|
5
|
0
|
6
|
|
December
|
2
|
0
|
2
|
0
|
4
|
|
Year 2024
|
Quarter 1
|
January
|
1
|
0
|
0
|
0
|
1
|
|
February
|
1
|
0
|
2
|
0
|
3
|
|
March
|
0
|
0
|
1
|
0
|
1
|
|
Quarter 2
|
April
|
6
|
0
|
4
|
0
|
10
|
|
May
|
2
|
0
|
0
|
0
|
2
|
|
June
|
1
|
0
|
2
|
0
|
3
|
|
Quarter 3
|
July
|
1
|
0
|
0
|
0
|
1
|
|
Total
|
94
|
0
|
93
|
0
|
187
|
