At what time of day they are brought: Megillah 20b; Temurah 14a
Bringing Additional Offerings before or after the Frankincense: Pesachim 58a-b
Bringing an additional offering before the Morning Daily Offering: Menachot 49a-b
Bringing a make-up offering: Temurah 14a
Miscellania
Whether we may only bring all or none of these offerings: Menachot 49a-b
Whether one uses an animal for an additonal offering or for the Daily Offering, where there aren't enough for both: Menachot 49a-b
The Above, where the choice is between an additional offering and the Daily Offering for the next day: Menachot 49a
The bringing of Additional Offerings suspends Special Prayers of the Shifts of National Representatives: Taanit 26a, 28a-b
The bringing of the Additional Offerings is for forgiveness for Impurity in the Temple and its Offerings: Rosh HaShanah 4b