How to put an entry for angular-redux/store in an angular library's umdModuleIds

Question

I'm trying to create a library that depends on @angular-redux/store but I can't figure out how to put an entry for it at my angular library's umdModuleIds in ng-package.json:

"umdModuleIds": {
  "redux": "Redux",
  "@angular-redux/store": "???" // anybody knows what's the correct entry?
}

I've already checked the @angular-redux/store's UMD file but the entry it has doesn't work. This one doesn't either but works well in webpack externals:

window["angular-redux"].store