What is the Toaru Kagaku no Railgun manga release schedule?


Very recently, the Toaru Kagaku no Railgun manga series resumed after its
break with Chapter 71/72 (They kinda messed with the chapter numbers, weird).

I've tried to search for a release schedule, but couldn't find one. The
official site is Japanese, and I haven't found it there either.

So when does chapter 73 come out? Is there an official release schedule
somewhere?

