참고할 글을 수집. 오랜된 글들도 있다.
* https://medium.com/codingthesmartway-com-blog/vue-js-2-firebase-e4b2479e35a8
* https://firebase.googleblog.com/2016/04/vuefire-firebase-meets-vuejs_0.html
* https://vueschool.io/courses/vuejs-firebase-realtime-database
* https://github.com/aofdev/vue-firebase-auth-vuex
* https://github.com/sejr/vuefire-quickstart
* https://savvyapps.com/blog/definitive-guide-building-web-app-vuejs-firebase
* https://medium.com/@anas.mammeri/vue-2-firebase-how-to-build-a-vue-app-with-firebase-authentication-system-in-15-minutes-fdce6f289c3c
* https://vuejs.org/v2/examples/firebase.html
* https://blog.logrocket.com/vue-firebase-authentication/
* https://www.smashingmagazine.com/2018/04/vuejs-firebase-firestore/
* https://medium.com/the-web-tub/integrating-firebase-to-a-vuejs-app-2444eafba5d2
* https://garywoodfine.com/how-to-install-firebase-with-vue-js/