Measure data filter on dates, but only shows equal date, instead of equal and lower dates

I have the following measure what should generate a whole number that counts the rows. I want to measure historical data on the following statements:

- The selected date should be higher or equal to the creation date (Date_entered)
- The selected date should be lower or equal to the close date (Date_Closed) OR Date_Closed is black (empty)

Therefore I use the following measure, but it only returns the data where the selected date is equal to the creation date. It doesn't count the earlier dates where the statements for are correct. 

Try1 = 
Var selectedDate = SELECTEDVALUE('Calendar'[DateAsInteger])
Var Calc = CALCULATE(COUNTA(SR_Service[countIfTicket]);
      FILTER(SR_Service;
          AND(selectedDate >= SR_Service[Date_Entered - Date];
          OR(SR_Service[Date_Closed - Date] = BLANK();
                selectedDate <= SR_Service[Date_Closed - Date])))
)
Return Calc

Al the dates have the Format "DD-MM-YYYY"
Also there is a realation to the Calendar table and SR_Service table (on Date and Date_Entered)

I hope somebody has idea where this goes wrong.