Dividend arrearage

I have reviewed the search results. I have good candidates for external links:

SEC.gov (or similar regulatory body): Result²³ and²² from SEC.gov provide information about preferred stock and disclosure, specifically mentioning "non-cumulative perpetual preferred stock" and disclosure requirements. Result²¹ from Deloitte (citing SEC Regulation S-X) also mentions disclosure of redeemable preferred stock, which is often tied to dividend terms. Result²⁰ from Deloitte (citing FASB ASC) is also great for accounting rules. I'll use the SEC link about "non-cumulative perpetual preferred stock" (Source 1) as it directly shows terms of preferred stock and implicitly the contrast. I'll also use the Deloitte accounting standards for FASB disclosure (Source 2).
Academic/Trusted Financial News: Result¹⁹ mentions historical examples like General Motors during the Great Depression. This could be a good narrative point. It also mentions Webvan. I'll try to find a more direct source for historical context like an academic paper or a reputable news archive. Investopedia,,, is a good definition, but I cannot use it as an external link because the prompt states "Articles must exceed Investopedia's quality". Corporate Finance Institute¹⁸ and AccountingCoach¹⁷ are also good for definitional aspects but might be too generic. WallStreetMojo¹⁶ is similar.
PwC Viewpoint (reputable accounting firm): Result¹⁵ from PwC provides detailed insights into preferred stock dividends and accounting, including cumulative dividends. This looks like a very good, verifiable source for practical applications and limitations. (Source 3)
Another SEC.gov link: Result¹⁴ also from SEC.gov talks about preferred stock dividends and liquidation, reinforcing legal obligations.

Let's refine the external links:

External Link 1 (SEC filing example): I can use an actual SEC filing document that details non-cumulative preferred stock or terms related to dividends. Result¹³ is a good candidate from sec.gov. "non-cumulative perpetual preferred stock, series a - SEC.gov". This shows real-world legal language.
External Link 2 (Accounting Standard/Guidance): Result¹² from Deloitte's Accounting Research Tool (DART) citing FASB ASC 505-10-50-5 about disclosure of arrearages. This is highly relevant and authoritative for accounting.
External Link 3 (Major Financial News/Historical Context): I need something about a historical event or major company. Result¹¹ mentions General Motors during the Great Depression, but the source itself is a Google AI search result redirect, not a direct original publication like a New York Times archive. I will search for "General Motors dividend arrearage Great Depression New York Times".
External Link 4 (Another trusted source on implications): Result¹⁰ discusses the effects on stock valuation and legal obligations, citing GAAP and FASB. While the host is "Century Interactive," the content sounds reliable and cites GAAP/FASB. I need to verify the actual domain and content quality. If "Century Interactive" is not a reputable finance/accounting firm or news outlet, I will look for another. PwC⁹ is strong, but I already have Deloitte. I want a minimum of 3 different trusted domains. Let's try to find a different domain for the fourth. Perhaps a Federal Reserve publication or academic journal.

Let's search for the GM historical example.¹ ² ³ ⁴ ⁵ ⁶ ⁷