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        Dannemann/Schulze, German Civil Code, Volume I
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            Book 2 Law of Obligations
            - Division 1 Subject matter of obligations
- Division 2 Drafting contractual obligations by means of standard business terms
- Division 3 Contractual obligations
- Division 4 Extinction of obligations
- Division 5 Transfer of a claim
- Division 6 Assumption of debt
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                  Division 7 More than one obligor and obligee
                
                - § 420 Divisible performance
- § 421 Joint and several debtors
- § 422 Effect of performance
- § 423 Effect of forgiveness
- § 424 Effect of default by the obligee
- § 425 Effect of other facts
- § 426 Duty to adjust advancements, passing of claim
- § 427 Joint contractual duty
- § 428 Joint and several creditors
- § 429 Effect of changes
- § 430 Duty of the joint and several creditors to adjust advancements
- § 431 More than one obligor of indivisible performance
- § 432 More than one obligee of indivisible performance
 
- Division 8 Particular types of obligations
 
 
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            Book 2 Law of Obligations