| Mode: For a past period of time For all time by years For all time by quarters For all time by months |
Тихонова, А. В. Род Энгельгардтов / А. В. Тихонова // Смоленское дворянство / Российское дворянское собрание. — М., 1997. – Вып. 1 : Родословные очерки / [сост. Л. А. Верховская ; ред. С. В. Думин] — <URL:ftp://smolensklib.ru/bd/dvorus/d0000995.pdf>.
| Period | Read | Copy | Open | Total | |||
|---|---|---|---|---|---|---|---|
| Year 2024 | Quarter 3 | July | 1 | 0 | 0 | 0 | 1 |
| August | 0 | 0 | 0 | 0 | 0 | ||
| September | 1 | 0 | 0 | 0 | 1 | ||
| Quarter 4 | October | 0 | 0 | 0 | 0 | 0 | |
| November | 0 | 0 | 0 | 0 | 0 | ||
| December | 0 | 0 | 0 | 0 | 0 | ||
| Total | 2 | 0 | 0 | 0 | 2 | ||